Hi,
So I'm introducing a houdini plugin into our in house engine and I'm testing my code out so far by loading and cooking an HDA file. The file is supposed to create a number of points based off some attributes. My problem is, I do not know how to get the output after I run HAPI_CookAsset.
Any help would be super appreciated!
Thanks
HAPI Basics question, getting the result of a cooked asset.
3086 3 2- Saffron
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- sburrichter
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In order to get the point data, you'll need to call HAPI_GetAttributeInfo() and HAPI_GetAttributeFloatData(). I'd do a quick scan through the geo and part sections of the docs to get started (one's a container and the other actually holds the mesh information), but generally the process is like this:
After that, you'll have some kind of point array to work with! That Node ID will allow you access to a lot of functionality.
Edit: Point3 is a max-specific container for a float3 array.
HAPI_NodeId nodeId = 1234; // Check GeoInfo incase we need multiple parts HAPI_GeoInfo geoInfo; HAPI_GetGeoInfo(); // Check part information for the point count (used later) HAPI_PartInfo partInfo; HAPI_GetPartInfo(); // Check information about our "P" attribute (is it an array? how big?) HAPI_AttributeInfo attrInfo; HAPI_GetAttributeInfo() // Get our "P" data using the supplied information Point3* p = new Point3[partInfo.pointCount]; HAPI_GetAttributeFloatData();
After that, you'll have some kind of point array to work with! That Node ID will allow you access to a lot of functionality.
Edit: Point3 is a max-specific container for a float3 array.
Edited by sburrichter - July 18, 2018 20:50:21
- chrisgreb
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Also check out the full-source sample section in the docs:
https://www.sidefx.com/docs/hengine/_h_a_p_i__full_source_samples__objects_geos_parts.html [www.sidefx.com]
https://www.sidefx.com/docs/hengine/_h_a_p_i__full_source_samples__objects_geos_parts.html [www.sidefx.com]
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