#include <GT_Util.h>

Static Public Member Functions
static void	makeGEO (UT_Array< GU_Detail * > &result, const GT_PrimitiveHandle &prim, const GT_RefineParms *rparms=NULL, int segment=0)

static void	makeGEO (UT_Array< GU_Detail * > &result, const GT_Primitive &prim, const GT_RefineParms *rparms=NULL, int segment=0)

static void	makeGEO (UT_Array< GU_DetailHandle > &result, const GT_PrimitiveHandle &prim, const GT_RefineParms *parms=NULL, int segment=0)

static void	makeGEO (UT_Array< GU_DetailHandle > &result, const GT_Primitive &prim, const GT_RefineParms *rparms=NULL, int segment=0)

static bool	isSimpleGEO (const GT_Primitive &prim, const GT_RefineParms *rparms=NULL)
	Test whether a primitive is atomic (i.e. converts to a single gdp) More...

static void	makeGD (GD_Detail &gdp, const GT_TrimNuCurves &curves)
	Convert a GT_TrimNuCurves primitive to a GD_Detail for trim curves. More...

static GT_Type	getType (GA_TypeInfo type)
	Map from GA_Type info to a GT_Type info. More...

static GA_TypeInfo	getGAType (GT_Type type)
	Map from GT_Type to GA_TypeInfo. More...

static GT_Storage	getStorage (GA_Storage storage)
	Map from GA_Storage to GT_Storage. More...

static GA_Storage	getGAStorage (GT_Storage storage)
	Map from GT_Storage to GA_Storage. More...

static GT_DataArrayHandle	extractAttribute (const GA_Attribute &attrib, const GA_Range &range)
	Extract a data array from a GA attribute. More...

static void	copyAttributeListToDetail (GU_Detail gdp, GA_AttributeOwner owner, const GT_RefineParms parms, const GT_AttributeListHandle &alist, int segment)
	Copies attributes from an attribute list to a detail. More...

static bool	computeSubdivisionCreases (const GU_Detail &gdp, const GT_PrimPolygonMesh &polymesh, GT_DataArrayHandle &edge_indices, GT_DataArrayHandle &edge_sharpnesses, GT_DataArrayHandle &corner_indices, GT_DataArrayHandle &corner_sharpnesses, GT_DataArrayHandle &hole_indices)

static bool	computeSubdivisionCreases (const GT_PrimPolygonMesh &polymesh, GT_DataArrayHandle &edge_indices, GT_DataArrayHandle &edge_sharpnesses, GT_DataArrayHandle &corner_indices, GT_DataArrayHandle &corner_sharpnesses, GT_DataArrayHandle &hole_indices)

static void	addStandardSubdTagsFromAttribs (GT_PrimSubdivisionMesh &subd_mesh, bool allow_uniform_parms=false, const GU_Detail *gdp=nullptr)

static GT_DataArrayHandle	getPointIndex (const GT_Primitive &prim, const GU_Detail &parent_detail, int npoints)
	Return an array of the point IDs of the primitives (in GA_Index's). More...

static GT_DataArrayHandle	getPointIndex (const GT_Primitive &prim, const GU_ConstDetailHandle &geo, int npoints)

static GT_DataArrayHandle	getPointOffset (const GT_Primitive &prim, const GU_Detail &parent_detail, int npoints)

static GT_DataArrayHandle	getPointOffset (const GT_Primitive &prim, const GU_ConstDetailHandle &geo, int npoints)

static GT_DataArrayHandle	getPrimitiveIndex (const GT_Primitive &prim, const GU_Detail &parent_dtl, bool use_nested=false)

static GT_DataArrayHandle	getPrimitiveIndex (const GT_Primitive &prim, const GU_ConstDetailHandle &pdtl, bool use_nested=false)

static GT_DataArrayHandle	getPrimitiveOffset (const GT_Primitive &prim, const GU_Detail &parent_dtl, bool use_nested=false)

static GT_DataArrayHandle	getPrimitiveOffset (const GT_Primitive &prim, const GU_ConstDetailHandle &pdtl, bool use_nested=false)

template<typename T >
static GT_DataArrayHandle	buildPointIndirect (GT_Size *points, GT_Size npoints, GT_Size newpoints)

template<typename T >
static GT_DataArrayHandle	buildVertexIndirect (const GT_Size *points, const GT_DataArrayHandle &vtx)

static GT_PrimitiveHandle	optimizePolyMeshForGL (const GT_PrimitiveHandle &mesh, GU_ConstDetailHandle &parent_dtl)

static GT_PrimitiveHandle	optimizeCurveMeshForGL (const GT_PrimitiveHandle &mesh)

static void	addViewportLODAttribs (const UT_Array< GEO_ViewportLOD > &lods, GT_AttributeListHandle &uniform, GT_AttributeListHandle &detail)

static void	addBBoxAttrib (const UT_BoundingBox &bbox, GT_AttributeListHandle &detail)

Detailed Description

Definition at line 33 of file GT_Util.h.

Member Function Documentation

static void GT_Util::addBBoxAttrib	(	const UT_BoundingBox &	bbox,
		GT_AttributeListHandle &	detail
	)

static

static void GT_Util::addStandardSubdTagsFromAttribs	(	GT_PrimSubdivisionMesh &	subd_mesh,
		bool	allow_uniform_parms = `false`,
		const GU_Detail *	gdp = `nullptr`
	)

static

Add the standard subdivision tags from the mesh attributes (e.g. creaseweight). If allow_uniform_parms is enabled, attributes for subdivision parameters (like osd_vtxboundaryinterpolation) can be read from the first element of a uniform attribute if the detail attribute does not exist. The gdp can optionally be provided as the source for the attributes and groups, if e.g. facesets aren't being imported.

static void GT_Util::addViewportLODAttribs	(	const UT_Array< GEO_ViewportLOD > &	lods,
		GT_AttributeListHandle &	uniform,
		GT_AttributeListHandle &	detail
	)

static

template<typename T >

static GT_DataArrayHandle GT_Util::buildPointIndirect	(	GT_Size *	points,
		GT_Size	npoints,
		GT_Size	newpoints
	)

inlinestatic

Definition at line 186 of file GT_Util.h.

template<typename T >

static GT_DataArrayHandle GT_Util::buildVertexIndirect	(	const GT_Size *	points,
		const GT_DataArrayHandle &	vtx
	)

inlinestatic

Definition at line 208 of file GT_Util.h.

static bool GT_Util::computeSubdivisionCreases	(	const GU_Detail &	gdp,
		const GT_PrimPolygonMesh &	polymesh,
		GT_DataArrayHandle &	edge_indices,
		GT_DataArrayHandle &	edge_sharpnesses,
		GT_DataArrayHandle &	corner_indices,
		GT_DataArrayHandle &	corner_sharpnesses,
		GT_DataArrayHandle &	hole_indices
	)

static

Some software represents crease weights as a list of edges and sharpnesses, or corners and sharpnesses. This code will look for the Houdini "crease" attributes and map them to edge or corner crease weights. Edge creases are specified by two indices and a single sharpneess (i.e. the length of edge_indices will be twice the length of edge_sharpness).
Each index (edge or corner) refers to a vertex in the vertex list.

Note: : This function relies on being able to find the __primitive_id and __vertex_id attributes on the polygon mesh to evaluate the creaseweight attribute.; : You only need a GT_PrimPolygonMesh to compute creases... GT_PrimSubdivisionMesh is a sub-class of GT_PrimPolygonMesh.

static bool GT_Util::computeSubdivisionCreases	(	const GT_PrimPolygonMesh &	polymesh,
		GT_DataArrayHandle &	edge_indices,
		GT_DataArrayHandle &	edge_sharpnesses,
		GT_DataArrayHandle &	corner_indices,
		GT_DataArrayHandle &	corner_sharpnesses,
		GT_DataArrayHandle &	hole_indices
	)

static

This version of computeSubdivisionCreases() looks for uniform or vertex attributes named "creaseweight" on the GT_PrimPolygonMesh.

static void GT_Util::copyAttributeListToDetail	(	GU_Detail *	gdp,
		GA_AttributeOwner	owner,
		const GT_RefineParms *	parms,
		const GT_AttributeListHandle &	alist,
		int	segment
	)

static

Copies attributes from an attribute list to a detail.

static GT_DataArrayHandle GT_Util::extractAttribute	(	const GA_Attribute &	attrib,
		const GA_Range &	range
	)

static

Extract a data array from a GA attribute.

static GA_Storage GT_Util::getGAStorage ( GT_Storage storage )

static

Map from GT_Storage to GA_Storage.

static GA_TypeInfo GT_Util::getGAType ( GT_Type type )

static

Map from GT_Type to GA_TypeInfo.

static GT_DataArrayHandle GT_Util::getPointIndex	(	const GT_Primitive &	prim,
		const GU_Detail &	parent_detail,
		int	npoints
	)

static

Return an array of the point IDs of the primitives (in GA_Index's).

static GT_DataArrayHandle GT_Util::getPointIndex	(	const GT_Primitive &	prim,
		const GU_ConstDetailHandle &	geo,
		int	npoints
	)

static

static GT_DataArrayHandle GT_Util::getPointOffset	(	const GT_Primitive &	prim,
		const GU_Detail &	parent_detail,
		int	npoints
	)

static

static GT_DataArrayHandle GT_Util::getPointOffset	(	const GT_Primitive &	prim,
		const GU_ConstDetailHandle &	geo,
		int	npoints
	)

static

static GT_DataArrayHandle GT_Util::getPrimitiveIndex	(	const GT_Primitive &	prim,
		const GU_Detail &	parent_dtl,
		bool	use_nested = `false`
	)

static

Return an array of the primitive IDs (in GA_Index's). If 'use_nested' is true, attempt to find __nested_prim_id first, then fall back to __primitive_id.

static GT_DataArrayHandle GT_Util::getPrimitiveIndex	(	const GT_Primitive &	prim,
		const GU_ConstDetailHandle &	pdtl,
		bool	use_nested = `false`
	)

static

static GT_DataArrayHandle GT_Util::getPrimitiveOffset	(	const GT_Primitive &	prim,
		const GU_Detail &	parent_dtl,
		bool	use_nested = `false`
	)

static

static GT_DataArrayHandle GT_Util::getPrimitiveOffset	(	const GT_Primitive &	prim,
		const GU_ConstDetailHandle &	pdtl,
		bool	use_nested = `false`
	)

static

static GT_Storage GT_Util::getStorage ( GA_Storage storage )

static

Map from GA_Storage to GT_Storage.

static GT_Type GT_Util::getType ( GA_TypeInfo type )

static

Map from GA_Type info to a GT_Type info.

static bool GT_Util::isSimpleGEO	(	const GT_Primitive &	prim,
		const GT_RefineParms *	rparms = `NULL`
	)

static

Test whether a primitive is atomic (i.e. converts to a single gdp)

static void GT_Util::makeGD	(	GD_Detail &	gdp,
		const GT_TrimNuCurves &	curves
	)

static

Convert a GT_TrimNuCurves primitive to a GD_Detail for trim curves.

static void GT_Util::makeGEO	(	UT_Array< GU_Detail * > &	result,
		const GT_PrimitiveHandle &	prim,
		const GT_RefineParms *	rparms = `NULL`,
		int	segment = `0`
	)

static

Create a list of geometry details. Each refined primitive is stored in a separate detail. Refine parameters include:

bool "gconvert:include_ids" (default: false)
Keep the __vertex_id and __primitive_id attributes in conversion
bool "gconvert:particleprim" (default: false)
Convert point mesh primitives to a particle primitive. If off, the detail will just contain points (no primitives).
bool "gconvert:pack" (default: false)
Each primitive will be packed into a packed primitive, meaning the list of returned details will each have a single packed primitive.

static void GT_Util::makeGEO	(	UT_Array< GU_Detail * > &	result,
		const GT_Primitive &	prim,
		const GT_RefineParms *	rparms = `NULL`,
		int	segment = `0`
	)

static

Create a list of geometry details for a single GT primitive. Each refined primitive is stored in a separate detail. These details must be deleted by the caller.

static void GT_Util::makeGEO	(	UT_Array< GU_DetailHandle > &	result,
		const GT_PrimitiveHandle &	prim,
		const GT_RefineParms *	parms = `NULL`,
		int	segment = `0`
	)

static

Create a list of geometry details, but return the result in an array of GU_DetailHandle's. Each primitive's refined geometry is stored in a separate detail.

Refine parameters include:

bool "gconvert:include_ids" (default: false)
Keep the __vertex_id and __primitive_id attributes in conversion
bool "gconvert:particleprim" (default: false)
Convert point mesh primitives to a particle primitive. If off, the detail will just contain points (no primitives).

static void GT_Util::makeGEO	(	UT_Array< GU_DetailHandle > &	result,
		const GT_Primitive &	prim,
		const GT_RefineParms *	rparms = `NULL`,
		int	segment = `0`
	)

static

Create a list of geometry details for a single GT primitive. Each refined primitive is stored in a separate detail.

static GT_PrimitiveHandle GT_Util::optimizeCurveMeshForGL ( const GT_PrimitiveHandle & mesh )

static

static GT_PrimitiveHandle GT_Util::optimizePolyMeshForGL	(	const GT_PrimitiveHandle &	mesh,
		GU_ConstDetailHandle &	parent_dtl
	)

static

The documentation for this class was generated from the following file:

GT/GT_Util.h

Static Public Member Functions

Detailed Description

Member Function Documentation