PxTriangleMeshDesc Class Reference
[Cooking]

Descriptor class for PxTriangleMesh. More...

#include <PxTriangleMeshDesc.h>

Inheritance diagram for PxTriangleMeshDesc:

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Collaboration diagram for PxTriangleMeshDesc:

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List of all members.

Public Member Functions
PX_INLINE	PxTriangleMeshDesc ()
	Constructor sets to default.
PX_INLINE void	setToDefault ()
	(re)sets the structure to the default.
PX_INLINE bool	isValid () const
	Returns true if the descriptor is valid.
Public Attributes
PxTypedStridedData < PxMaterialTableIndex >	materialIndices

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Detailed Description

Descriptor class for PxTriangleMesh.

Note that this class is derived from PxSimpleTriangleMesh which contains the members that describe the basic mesh. The mesh data is *copied* when an PxTriangleMesh object is created from this descriptor. After the call the user may discard the triangle data.

See also:

PxTriangleMesh PxTriangleMeshGeometry PxShape

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Member Data Documentation

PxTypedStridedData<PxMaterialTableIndex> PxTriangleMeshDesc::materialIndices

Optional pointer to first material index, or NULL. There are PxSimpleTriangleMesh::numTriangles indices in total. Caller may add materialIndexStride bytes to the pointer to access the next triangle.

When a triangle mesh collides with another object, a material is required at the collision point. If materialIndices is NULL, then the material of the PxShape instance is used. Otherwise, if the point of contact is on a triangle with index i, then the material index is determined as: PxMaterialTableIndex index = *(PxMaterialTableIndex *)(((PxU8*)materialIndices) + materialIndexStride * i);

If the contact point falls on a vertex or an edge, a triangle adjacent to the vertex or edge is selected, and its index used to look up a material. The selection is arbitrary but consistent over time.

Default: NULL

See also:

materialIndexStride

Referenced by isValid().

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

• PxTriangleMeshDesc.h