kindred/create
1
1
Fork 0
Code Issues 37 Pull Requests Actions Packages Projects 9 Releases 2 Wiki Activity

extend texture mapping to meshes

Browse Source
This commit is contained in:
wmayer
2019-09-24 17:19:15 +02:00
parent c8be77f893
commit bd6da5699e
2 changed files with 82 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

71
src/Mod/Mesh/App/MeshTexture.cpp
View File

@@ -46,6 +46,77 @@ MeshTexture::MeshTexture(const Mesh::MeshObject& mesh, const MeshCore::Material
}
}
void MeshTexture::apply(const Mesh::MeshObject& mesh, const App::Color& defaultColor, MeshCore::Material &material)
{
// copy the color values because the passed material could be the same instance as 'materialRefMesh'
std::vector<App::Color> textureColor = materialRefMesh.diffuseColor;
material.diffuseColor.clear();
material.binding = MeshCore::MeshIO::OVERALL;
if (kdTree.get()) {
// the points of the current mesh
std::vector<App::Color> diffuseColor;
const MeshCore::MeshPointArray& points = mesh.getKernel().GetPoints();
const MeshCore::MeshFacetArray& facets = mesh.getKernel().GetFacets();
if (binding == MeshCore::MeshIO::PER_VERTEX) {
diffuseColor.reserve(points.size());
for (size_t index=0; index<points.size(); index++) {
unsigned long pos = kdTree->FindExact(points[index]);
if (pos < countPointsRefMesh) {
diffuseColor.push_back(textureColor[pos]);
}
else {
diffuseColor.push_back(defaultColor);
}
}
if (diffuseColor.size() == points.size()) {
material.diffuseColor.swap(diffuseColor);
material.binding = MeshCore::MeshIO::PER_VERTEX;
}
}
else if (binding == MeshCore::MeshIO::PER_FACE) {
// the values of the map give the point indices of the original mesh
std::vector<unsigned long> pointMap;
pointMap.reserve(points.size());
for (size_t index=0; index<points.size(); index++) {
unsigned long pos = kdTree->FindExact(points[index]);
if (pos < countPointsRefMesh) {
pointMap.push_back(pos);
}
else {
pointMap.push_back(ULONG_MAX);
}
}
// now determine the facet indices of the original mesh
if (pointMap.size() == points.size()) {
diffuseColor.reserve(facets.size());
for (auto it : facets) {
unsigned long index1 = pointMap[it._aulPoints[0]];
unsigned long index2 = pointMap[it._aulPoints[1]];
unsigned long index3 = pointMap[it._aulPoints[2]];
if (index1 != ULONG_MAX && index2 != ULONG_MAX && index3 != ULONG_MAX) {
std::vector<unsigned long> found = refPnt2Fac->GetIndices(index1, index2, index3);
if (found.size() == 1) {
diffuseColor.push_back(textureColor[found.front()]);
}
}
else {
diffuseColor.push_back(defaultColor);
}
}
}
if (diffuseColor.size() == facets.size()) {
material.diffuseColor.swap(diffuseColor);
material.binding = MeshCore::MeshIO::PER_FACE;
}
}
}
}
void MeshTexture::apply(const Mesh::MeshObject& mesh, MeshCore::Material &material)
{
// copy the color values because the passed material could be the same instance as 'materialRefMesh'