message: Add exlanatory comment to asserts in extract_texture(...)
diff: @@ -189,7 +189,11 @@ extract_texture(const core::Mesh& mesh, Eigen::Matrix<float, 3, 4> affine_camera
  TextureInterpolation mapping_type = TextureInterpolation::NearestNeighbour,
  int isomap_resolution = 512)
  {
  + // Assert that either there are texture coordinates given for each vertex (in which case the texture map
  + // doesn't contain any seams), or that a separate list of texture triangle indices is given (i.e. mesh.tti
  + // is not empty):
  assert(mesh.vertices.size() == mesh.texcoords.size() || !mesh.tti.empty());
  + // Sanity check on the texture triangle indices: They should be either empty or equal to tvi.size():
  assert(mesh.tti.empty() || mesh.tti.size() == mesh.tvi.size());
  using Eigen::Vector2f;
  