void Model::processMeshTextCoords(FbxMesh *mesh, Vertex *verts, int numVerts)
{
int matCount = mesh->GetElementMaterialCount();
FbxLayerElementMaterial *matElem = NULL;
if (matCount) //only supporting 1 material layer max
matElem = mesh->GetElementMaterial(0);
int polCount = mesh->GetPolygonCount();
for (int polInd = 0; polInd < polCount; polInd++)
{
int textureId = 0;
if (matElem)
{
textureId = matElem->GetIndexArray().GetAt(polInd);
}
for (unsigned polVert = 0; polVert < 3; polVert++)
{
int cornerIndex = mesh->GetPolygonVertex(polInd, polVert);
FbxVector2 UV = FbxVector2(0, 0);
FbxLayer *layer = mesh->GetLayer(0);
FbxLayerElementUV *layerUV = layer->GetUVs();
FbxLayerElementTexture *layerTexture = layer->GetTextures(FbxLayerElement::eTextureDiffuse);
if (layerUV)
{
int UVindex = 0;
switch (layerUV->GetMappingMode())
{
case FbxLayerElement::eByControlPoint:
UVindex = cornerIndex;
break;
case FbxLayerElement::eByPolygonVertex:
UVindex = mesh->GetTextureUVIndex(polInd, polVert, FbxLayerElement::eTextureDiffuse);
break;
case FbxLayerElement::eByPolygon:
UVindex = polInd;
break;
}
UV = layerUV->GetDirectArray().GetAt(UVindex);
verts[cornerIndex].color.x = textureId;
verts[cornerIndex].texture.x = UV[0];
verts[cornerIndex].texture.y = 1.f - UV[1];
}
}
}
}
