message: Relax glTF TEXCOORD_1 warning to attempted usage only.
diff: @@ -846,11 +846,14 @@ namespace ospray {
  for (size_t i = 0; i < uv_accessor.size(); ++i)
  vt.emplace_back(uv_accessor[i]);
  }
  +#if 0 // OSPRay does not support a second uv texcoord set
  + // But, specifying it here isn't a problem. Only on attempted usage.
  fnd = prim.attributes.find("TEXCOORD_1");
  if (fnd != prim.attributes.end()) {
  - WARN << "gltf found TEXCOOR_1 attribute. Not supported...\n"
  + WARN << "gltf found TEXCOORD_1 attribute. Not supported...\n"
  << std::endl;
  }
  +#endif
  #endif
  // Add attribute arrays to mesh
  @@ -906,6 +909,13 @@ namespace ospray {
  // All textures *can* specify a texcoord other than 0. OSPRay only
  // supports one set of texcoords (TEXCOORD_0).
  + if (pbr.baseColorTexture.texCoord != 0
  + || pbr.metallicRoughnessTexture.texCoord != 0
  + || mat.normalTexture.texCoord != 0
  + || mat.emissiveTexture.texCoord != 0) {
  + WARN << "gltf found TEXCOOR_1 attribute. Not supported...\n"
  + << std::endl;
  + }
  if (pbr.baseColorTexture.index != -1 &&
  pbr.baseColorTexture.texCoord == 0) {
  