message: Default: no textures in viewer
diff: @@ -531,9 +531,9 @@ void renderer::on_display()
  thrust::raw_pointer_cast(device_primitives.data()),
  thrust::raw_pointer_cast(device_primitives.data()) + device_primitives.size(),
  thrust::raw_pointer_cast(device_normals.data()),
  - thrust::raw_pointer_cast(device_tex_coords.data()),
  +// thrust::raw_pointer_cast(device_tex_coords.data()),
  thrust::raw_pointer_cast(device_materials.data()),
  - thrust::raw_pointer_cast(device_textures.data()),
  +// thrust::raw_pointer_cast(device_textures.data()),
  thrust::raw_pointer_cast(device_lights.data()),
  thrust::raw_pointer_cast(device_lights.data()) + device_lights.size(),
  bounces,
  @@ -557,9 +557,9 @@ void renderer::on_display()
  host_primitives.data(),
  host_primitives.data() + host_primitives.size(),
  mod.geometric_normals.data(),
  - mod.tex_coords.data(),
  +// mod.tex_coords.data(),
  host_materials.data(),
  - mod.textures.data(),
  +// mod.textures.data(),
  host_lights.data(),
  host_lights.data() + host_lights.size(),
  bounces,
  