Attributes

Functions
HAPI_DECL	HAPI_GetAttributeInfo (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeOwner owner, HAPI_AttributeInfo *attr_info)
	Get the attribute info struct for the attribute specified by name. More...
HAPI_DECL	HAPI_GetAttributeNames (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, HAPI_AttributeOwner owner, HAPI_StringHandle *attribute_names_array, int count)
	Get list of attribute names by attribute owner. Note that the name string handles are only valid until the next time this function is called. More...
HAPI_DECL	HAPI_GetAttributeIntData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int stride, int *data_array, int start, int length)
	Get attribute integer data. More...
HAPI_DECL	HAPI_GetAttributeIntArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_GetAttributeUInt8Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int stride, HAPI_UInt8 *data_array, int start, int length)
	Get attribute unsigned 8-bit integer data. More...
HAPI_DECL	HAPI_GetAttributeUInt8ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_UInt8 *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute unsigned 8-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_GetAttributeInt8Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int stride, HAPI_Int8 *data_array, int start, int length)
	Get attribute 8-bit integer data. More...
HAPI_DECL	HAPI_GetAttributeInt8ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_Int8 *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute 8-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_GetAttributeInt16Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int stride, HAPI_Int16 *data_array, int start, int length)
	Get attribute 16-bit integer data. More...
HAPI_DECL	HAPI_GetAttributeInt16ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_Int16 *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute 16-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_GetAttributeInt64Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int stride, HAPI_Int64 *data_array, int start, int length)
	Get attribute 64-bit integer data. More...
HAPI_DECL	HAPI_GetAttributeInt64ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_Int64 *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute 64-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_GetAttributeFloatData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int stride, float *data_array, int start, int length)
	Get attribute float data. More...
HAPI_DECL	HAPI_GetAttributeFloatArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, float *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute float data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_GetAttributeFloat64Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, int stride, double *data_array, int start, int length)
	Get 64-bit attribute float data. More...
HAPI_DECL	HAPI_GetAttributeFloat64ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, double *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute 64-bit float data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_GetAttributeStringData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_StringHandle *data_array, int start, int length)
	Get attribute string data. Note that the string handles returned are only valid until the next time this function is called. More...
HAPI_DECL	HAPI_GetAttributeStringArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_StringHandle *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute string data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. Note that the string handles returned are only valid until the next time this function is called. More...
HAPI_DECL	HAPI_GetAttributeDictionaryData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_StringHandle *data_array, int start, int length)
	Get attribute dictionary data. More...
HAPI_DECL	HAPI_GetAttributeDictionaryArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, HAPI_AttributeInfo *attr_info, HAPI_StringHandle *data_fixed_array, int data_fixed_length, int *sizes_fixed_array, int start, int sizes_fixed_length)
	Get array attribute dictionary data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. More...
HAPI_DECL	HAPI_AddAttribute (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info)
	Add an attribute. More...
HAPI_DECL	HAPI_DeleteAttribute (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info)
	Delete an attribute from an input geo. More...
HAPI_DECL	HAPI_SetAttributeIntData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const int *data_array, int start, int length)
	Set attribute integer data. More...
HAPI_DECL	HAPI_SetAttributeUInt8Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_UInt8 *data_array, int start, int length)
	Set unsigned 8-bit attribute integer data. More...
HAPI_DECL	HAPI_SetAttributeInt8Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int8 *data_array, int start, int length)
	Set 8-bit attribute integer data. More...
HAPI_DECL	HAPI_SetAttributeInt16Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int16 *data_array, int start, int length)
	Set 16-bit attribute integer data. More...
HAPI_DECL	HAPI_SetAttributeInt64Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int64 *data_array, int start, int length)
	Set 64-bit attribute integer data. More...
HAPI_DECL	HAPI_SetAttributeFloatData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const float *data_array, int start, int length)
	Set attribute float data. More...
HAPI_DECL	HAPI_SetAttributeFloat64Data (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const double *data_array, int start, int length)
	Set 64-bit attribute float data. More...
HAPI_DECL	HAPI_SetAttributeStringData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const char **data_array, int start, int length)
	Set attribute string data. More...
HAPI_DECL	HAPI_SetAttributeIndexedStringData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const char **string_array, int string_count, const int *indices_array, int indices_start, int indices_length)
	Set attribute string data by index. More...
HAPI_DECL	HAPI_SetAttributeStringUniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const char *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute string data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeIntUniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const int *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute int data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeUInt8UniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_UInt8 *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute unsigned 8-bit int data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeInt8UniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int8 *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute 8-bit int data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeInt16UniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int16 *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute 16-bit int data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeInt64UniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int64 *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute 64-bit int data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeFloatUniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const float *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute float data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeFloat64UniqueData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const double *data_array, int data_length, int start_index, int num_indices)
	Set multiple attribute 64-bit float data to the same unique value. More...
HAPI_DECL	HAPI_SetAttributeDictionaryData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const char **data_array, int start, int length)
	Set attribute dictionary data. The dictionary data should be provided as JSON-encoded strings. More...
HAPI_DECL	HAPI_SetAttributeIntArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const int *data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
HAPI_DECL	HAPI_SetAttributeUInt8ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_UInt8 *data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
HAPI_DECL	HAPI_SetAttributeInt8ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int8 *data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
HAPI_DECL	HAPI_SetAttributeInt16ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int16 *data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
HAPI_DECL	HAPI_SetAttributeInt64ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const HAPI_Int64 *data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
HAPI_DECL	HAPI_SetAttributeFloatArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const float *data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
HAPI_DECL	HAPI_SetAttributeFloat64ArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const double *data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
HAPI_DECL	HAPI_SetAttributeStringArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const char **data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
	Set attribute string array data. More...
HAPI_DECL	HAPI_SetAttributeDictionaryArrayData (const HAPI_Session *session, HAPI_NodeId node_id, HAPI_PartId part_id, const char *name, const HAPI_AttributeInfo *attr_info, const char **data_fixed_array, int data_fixed_length, const int *sizes_fixed_array, int start, int sizes_fixed_length)
	Set attribute dictionary array data. The dictionary data should be provided as JSON-encoded strings. More...

Detailed Description

Functions for working with attributes.

Function Documentation

HAPI_DECL HAPI_AddAttribute	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info
	)

Add an attribute.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo stores attribute properties.

HAPI_DECL HAPI_DeleteAttribute	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info
	)

Delete an attribute from an input geo.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo stores attribute properties.

HAPI_DECL HAPI_GetAttributeDictionaryArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_StringHandle *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute dictionary data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Dictionary data is serialized as JSON-encoded strings. Note that the string handles returned are only valid until the next time this function is called.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for the. totalArrayElements. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An HAPI_StringHandle array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeDictionaryData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_StringHandle *	data_array,
		int	start,
		int	length
	)

Get attribute dictionary data.

Dictionary data is serialized as JSON-encoded strings. Note that the string handles returned are only valid until the next time this function is called.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_array	An HAPI_StringHandle array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeFloat64ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		double *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute 64-bit float data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for the. totalArrayElements. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An 64-bit float array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeFloat64Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int	stride,
		double *	data_array,
		int	start,
		int	length
	)

Get 64-bit attribute float data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	stride	Specifies how many items to skip over for each element. With a stride of -1, the stride will be set to attr_info->tuple_size. Otherwise, the stride will be set to the maximum of attr_info->tuple_size and stride.
[out]	data_array	An 64-bit float array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeFloatArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		float *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute float data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An float array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeFloatData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int	stride,
		float *	data_array,
		int	start,
		int	length
	)

Get attribute float data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	stride	Specifies how many items to skip over for each element. With a stride of -1, the stride will be set to attr_info->tuple_size. Otherwise, the stride will be set to the maximum of attr_info->tuple_size and stride.
[out]	data_array	An float array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeInfo	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeOwner	owner,
		HAPI_AttributeInfo *	attr_info
	)

Get the attribute info struct for the attribute specified by name.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	owner	Attribute owner.
[out]	attr_info	HAPI_AttributeInfo to be filled. Check HAPI_AttributeInfo::exists to see if this attribute exists.

HAPI_DECL HAPI_GetAttributeInt16ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_Int16 *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute 16-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An 16-bit integer array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeInt16Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int	stride,
		HAPI_Int16 *	data_array,
		int	start,
		int	length
	)

Get attribute 16-bit integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	stride	Specifies how many items to skip over for each element. With a stride of -1, the stride will be set to attr_info->tuple_size. Otherwise, the stride will be set to the maximum of attr_info->tuple_size and stride.
[out]	data_array	An 16-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeInt64ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_Int64 *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute 64-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An 64-bit integer array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeInt64Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int	stride,
		HAPI_Int64 *	data_array,
		int	start,
		int	length
	)

Get attribute 64-bit integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	stride	Specifies how many items to skip over for each element. With a stride of -1, the stride will be set to attr_info->tuple_size. Otherwise, the stride will be set to the maximum of attr_info->tuple_size and stride.
[out]	data_array	An 64-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeInt8ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_Int8 *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute 8-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An 8-bit integer array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeInt8Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int	stride,
		HAPI_Int8 *	data_array,
		int	start,
		int	length
	)

Get attribute 8-bit integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	stride	Specifies how many items to skip over for each element. With a stride of -1, the stride will be set to attr_info->tuple_size. Otherwise, the stride will be set to the maximum of attr_info->tuple_size and stride.
[out]	data_array	An 8-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeIntArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An integer array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeIntData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int	stride,
		int *	data_array,
		int	start,
		int	length
	)

Get attribute integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	stride	Specifies how many items to skip over for each element. With a stride of -1, the stride will be set to attr_info->tuple_size. Otherwise, the stride will be set to the maximum of attr_info->tuple_size and stride.
[out]	data_array	An integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeNames	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		HAPI_AttributeOwner	owner,
		HAPI_StringHandle *	attribute_names_array,
		int	count
	)

Get list of attribute names by attribute owner. Note that the name string handles are only valid until the next time this function is called.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	owner	The HAPI_AttributeOwner enum value specifying the owner of the attribute.
[out]	attribute_names_array	Array of ints (string handles) to house the attribute names. Should be exactly the size of the appropriate attribute owner type count in HAPI_PartInfo.
[in]	count	Sanity check count. Must be equal to the appropriate attribute owner type count in HAPI_PartInfo.

HAPI_DECL HAPI_GetAttributeStringArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_StringHandle *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute string data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry. Note that the string handles returned are only valid until the next time this function is called.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for the. totalArrayElements. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An HAPI_StringHandle array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeStringData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_StringHandle *	data_array,
		int	start,
		int	length
	)

Get attribute string data. Note that the string handles returned are only valid until the next time this function is called.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_array	An HAPI_StringHandle array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeUInt8ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		HAPI_UInt8 *	data_fixed_array,
		int	data_fixed_length,
		int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Get array attribute unsigned 8-bit integer data. Each entry in an array attribute can have varying array lengths. Therefore the array values are returned as a flat array, with another sizes array containing the lengths of each array entry.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[out]	data_fixed_array	An unsigned 8-bit integer array at least the size of HAPI_AttributeInfo::totalArrayElements.
[in]	data_fixed_length	Must be HAPI_AttributeInfo::totalArrayElements.
[out]	sizes_fixed_array	An integer array at least the size of sizes_fixed_length to hold the size of each entry.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_GetAttributeUInt8Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		HAPI_AttributeInfo *	attr_info,
		int	stride,
		HAPI_UInt8 *	data_array,
		int	start,
		int	length
	)

Get attribute unsigned 8-bit integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The node id.
[in]	part_id	The part id.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	stride	Specifies how many items to skip over for each element. With a stride of -1, the stride will be set to attr_info->tuple_size. Otherwise, the stride will be set to the maximum of attr_info->tuple_size and stride.
[out]	data_array	An unsigned 8-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start. Note, if 0 is passed for length, the function will just do nothing and return HAPI_RESULT_SUCCESS.

HAPI_DECL HAPI_SetAttributeDictionaryArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const char **	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Set attribute dictionary array data. The dictionary data should be provided as JSON-encoded strings.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the dictionary values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeDictionaryData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const char **	data_array,
		int	start,
		int	length
	)

Set attribute dictionary data. The dictionary data should be provided as JSON-encoded strings.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An HAPI_StringHandle array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeFloat64ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const double *	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the double values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeFloat64Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const double *	data_array,
		int	start,
		int	length
	)

Set 64-bit attribute float data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An 64-bit float array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeFloat64UniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const double *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute 64-bit float data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A floating point array at least the size of HAPI_AttributeInfo::tupleSize.
[in]	data_length	An integer of at least the size of HAPI_AttributeInfo::tupleSize.
[in]	start_index	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start_index.

HAPI_DECL HAPI_SetAttributeFloatArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const float *	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the float values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeFloatData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const float *	data_array,
		int	start,
		int	length
	)

Set attribute float data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An float array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeFloatUniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const float *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute float data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A floating point array at least the size of HAPI_AttributeInfo::tupleSize.
[in]	data_length	An integer of at least the size of HAPI_AttributeInfo::tupleSize.
[in]	start_index	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start_index.

HAPI_DECL HAPI_SetAttributeIndexedStringData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const char **	string_array,
		int	string_count,
		const int *	indices_array,
		int	indices_start,
		int	indices_length
	)

Set attribute string data by index.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	string_array	An array of strings at least the size of string_count/tt>.
[in]	string_count	Number of strings that are indexed.
[in]	indices_array	integer array at least the size of length * HAPI_AttributeInfo::tupleSize. Each entry indexes string_array.
[in]	indices_start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	indices_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeInt16ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int16 *	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the HAPI_Int16 values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeInt16Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int16 *	data_array,
		int	start,
		int	length
	)

Set 16-bit attribute integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An 16-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeInt16UniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int16 *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute 16-bit int data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A integer array at least the size of HAPI_AttributeInfo::tupleSize.
[in]	data_length	An integer of at least the size of HAPI_AttributeInfo::tupleSize.
[in]	start_index	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start_index.

HAPI_DECL HAPI_SetAttributeInt64ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int64 *	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the HAPI_Int64 values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeInt64Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int64 *	data_array,
		int	start,
		int	length
	)

Set 64-bit attribute integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An 64-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeInt64UniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int64 *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute 64-bit int data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A integer array at least the size of HAPI_AttributeInfo::tupleSize.
[in]	data_length	An integer of at least the size of HAPI_AttributeInfo::tupleSize.
[in]	start_index	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start_index.

HAPI_DECL HAPI_SetAttributeInt8ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int8 *	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the HAPI_Int8 values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeInt8Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int8 *	data_array,
		int	start,
		int	length
	)

Set 8-bit attribute integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An 8-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeInt8UniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_Int8 *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute 8-bit int data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A integer array at least the size of HAPI_AttributeInfo::tupleSize.
[in]	data_length	An integer of at least the size of HAPI_AttributeInfo::tupleSize.
[in]	start_index	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start_index.

HAPI_DECL HAPI_SetAttributeIntArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const int *	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the int values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeIntData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const int *	data_array,
		int	start,
		int	length
	)

Set attribute integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeIntUniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const int *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute int data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A integer array at least the size of HAPI_AttributeInfo::tupleSize.
[in]	data_length	An integer of at least the size of HAPI_AttributeInfo::tupleSize.
[in]	start_index	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start_index.

HAPI_DECL HAPI_SetAttributeStringArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const char **	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Set attribute string array data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the string values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeStringData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const char **	data_array,
		int	start,
		int	length
	)

Set attribute string data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An HAPI_StringHandle array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeStringUniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const char *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute string data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A string
[in]	data_length	Must be the length of string data.
[in]	start_index	Must be at least 0 and at most HAPI_AttributeInfo::count - start.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeUInt8ArrayData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_UInt8 *	data_fixed_array,
		int	data_fixed_length,
		const int *	sizes_fixed_array,
		int	start,
		int	sizes_fixed_length
	)

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo that contains the description for the attribute that is being set.
[in]	data_fixed_array	An array containing the HAPI_UInt8 values of the attribute.
[in]	data_fixed_length	The total size of the data array. The size can be no greater than the HAPI_AttributeInfo::totalArrayElements of the attribute.
[in]	sizes_fixed_array	An array of integers that contains the sizes of each attribute array. This is required because the attribute array for each geometry component can be of variable size.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	sizes_fixed_length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeUInt8Data	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_UInt8 *	data_array,
		int	start,
		int	length
	)

Set unsigned 8-bit attribute integer data.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	An unsigned 8-bit integer array at least the size of length * HAPI_AttributeInfo::tupleSize.
[in]	start	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	length	Must be at least 0 and at most HAPI_AttributeInfo::count - start.

HAPI_DECL HAPI_SetAttributeUInt8UniqueData	(	const HAPI_Session *	session,
		HAPI_NodeId	node_id,
		HAPI_PartId	part_id,
		const char *	name,
		const HAPI_AttributeInfo *	attr_info,
		const HAPI_UInt8 *	data_array,
		int	data_length,
		int	start_index,
		int	num_indices
	)

Set multiple attribute unsigned 8-bit int data to the same unique value.

Parameters

[in]	session	The session of Houdini you are interacting with. See HAPI_Sessions for more on sessions. Pass NULL to just use the default in-process session.
[in]	node_id	The SOP node id.
[in]	part_id	Currently not used. Just pass 0.
[in]	name	Attribute name.
[in]	attr_info	HAPI_AttributeInfo used as input for what tuple size. you want. Also contains some sanity checks like data type. Generally should be the same struct returned by HAPI_GetAttributeInfo().
[in]	data_array	A integer array at least the size of HAPI_AttributeInfo::tupleSize.
[in]	data_length	An integer of at least the size of HAPI_AttributeInfo::tupleSize.
[in]	start_index	First index of range. Must be at least 0 and at most HAPI_AttributeInfo::count - 1.
[in]	num_indices	Must be at least 0 and at most HAPI_AttributeInfo::count - start_index.