nvidia::apex::ClothingMeshSkinningMap Struct Reference

Maps from a triangle of the simulated mesh to a vertex of the rendered mesh. The barycentric coordinates describe the position of a point in space relative to a simulated triangle. The actual z-coordinate is computed by bary.z = 1 - bary.x - bary.y. The z part of the vector contains the height of the skinned vertex along the normal of the simulated triangle. More...

#include <ClothingAsset.h>

List of all members.

Public Attributes
PxVec3	positionBary
	Barycentric coordinates of the graphical vertex relative to the simulated triangle.
uint32_t	vertexIndex0
	First vertex of the simulated triangle.
PxVec3	normalBary
	Barycentric coordinates of a point that represents the normal. The actual normal can be extracted by subtracting the skinned position from this point.
uint32_t	vertexIndex1
	Second vertex of the simulated triangle.
PxVec3	tangentBary
	Barycentric coordinates of a point that represents the tangent. The actual tangent can be extracted by subtracting the skinned position from this point.
uint32_t	vertexIndex2
	Third vertex of the simulated triangle.

---

Detailed Description

Maps from a triangle of the simulated mesh to a vertex of the rendered mesh. The barycentric coordinates describe the position of a point in space relative to a simulated triangle. The actual z-coordinate is computed by bary.z = 1 - bary.x - bary.y. The z part of the vector contains the height of the skinned vertex along the normal of the simulated triangle.

So, the following computes the new skinned position:

uint32_t i0 = map[mapId].vertexIndex0; uint32_t i1 = map[mapId].vertexIndex1; uint32_t i2 = map[mapId].vertexIndex2;

PxVec3 bary = map[mapId].positionBary; float heightOffset = bary.z * actorScale; bary.z = (1 - bary.x - bary.y);

PxVec3 posOnTriangle = physPositions[i0] * bary.x + physPositions[i1] * bary.y + physPositions[i2] * bary.z;

offsetFromTriangle = (physNormals[i0] * bary.x + physNormals[i1] * bary.y + physNormals[i2] * bary.z) heightOffset;

skinnedPos = posOnTriangle + offsetFromTriangle;

---

Member Data Documentation

PxVec3 nvidia::apex::ClothingMeshSkinningMap::normalBary

Barycentric coordinates of a point that represents the normal. The actual normal can be extracted by subtracting the skinned position from this point.

Note:

PX_MAX_F32 values represent invalid coordinates.

PxVec3 nvidia::apex::ClothingMeshSkinningMap::positionBary

Barycentric coordinates of the graphical vertex relative to the simulated triangle.

Note:

PX_MAX_F32 values represent invalid coordinates.

PxVec3 nvidia::apex::ClothingMeshSkinningMap::tangentBary

Barycentric coordinates of a point that represents the tangent. The actual tangent can be extracted by subtracting the skinned position from this point.

Note:

PX_MAX_F32 values represent invalid coordinates.

---

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

• ClothingAsset.h