void PackLightmapUVs(Mesh m, int packID, BakeAttribute bakeAttribute)
{
List <Vector3> normals = new List <Vector3>();
m.GetNormals(normals);
List <Vector4> tangents = new List <Vector4>();
m.GetTangents(tangents);
Vector3[] pdeltaPositions = new Vector3[m.vertexCount];
Vector3[] pdeltaNormals = new Vector3[m.vertexCount];
Vector3[] pdeltaTangents = new Vector3[m.vertexCount];
m.GetBlendShapeFrameVertices(packID, 0, pdeltaPositions, pdeltaNormals, pdeltaTangents);
List <Vector4> uv = new List <Vector4>();
m.GetUVs(1, uv);
for (int i = 0; i < uv.Count; i++) // We bake positions using the normals and tangents as an orthogonal basis.
{
Vector3 packrat = ToTangentSpace(pdeltaPositions[i], normals[i], tangents[i]);
switch (bakeAttribute)
{
case BakeAttribute.X: uv[i] = new Vector4(uv[i].x, uv[i].y, uv[i].z, packrat.x); break;
case BakeAttribute.Y: uv[i] = new Vector4(uv[i].x, uv[i].y, uv[i].z, packrat.y); break;
case BakeAttribute.Z: uv[i] = new Vector4(uv[i].x, uv[i].y, uv[i].z, packrat.z); break;
}
}
m.SetUVs(1, uv);
}
void Bake(Mesh m, int blendShapeID, BakeType type, int dest, int packID, BakeAttribute bakeAttribute)
{
List <Vector3> normals = new List <Vector3>();
m.GetNormals(normals);
List <Vector4> tangents = new List <Vector4>();
m.GetTangents(tangents);
Vector3[] deltaPositions = new Vector3[m.vertexCount];
Vector3[] deltaNormals = new Vector3[m.vertexCount];
Vector3[] deltaTangents = new Vector3[m.vertexCount];
m.GetBlendShapeFrameVertices(blendShapeID, 0, deltaPositions, deltaNormals, deltaTangents);
Vector3[] pdeltaPositions = new Vector3[m.vertexCount];
Vector3[] pdeltaNormals = new Vector3[m.vertexCount];
Vector3[] pdeltaTangents = new Vector3[m.vertexCount];
m.GetBlendShapeFrameVertices(packID, 0, pdeltaPositions, pdeltaNormals, pdeltaTangents);
List <Vector4> uv = new List <Vector4>();
switch (type)
{
case BakeType.DeltaPosition:
for (int i = 0; i < m.vertexCount; i++) // We bake positions using the normals and tangents as an orthogonal basis.
{
Vector3 XYZ = ToTangentSpace(deltaPositions[i], normals[i], tangents[i]);
Vector3 packrat = ToTangentSpace(pdeltaPositions[i], normals[i], tangents[i]);
switch (bakeAttribute)
{
case BakeAttribute.X: uv.Add(new Vector4(XYZ.x, XYZ.y, XYZ.z, packrat.x)); break;
case BakeAttribute.Y: uv.Add(new Vector4(XYZ.x, XYZ.y, XYZ.z, packrat.y)); break;
case BakeAttribute.Z: uv.Add(new Vector4(XYZ.x, XYZ.y, XYZ.z, packrat.z)); break;
}
}
break;
}
m.SetUVs(dest, uv);
}