Method LoadTextureInfo

IO/Geometry/vtkGLTFDocumentLoaderInternals.cxx:1263–1300

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//------------------------------------------------------------------------------
bool vtkGLTFDocumentLoaderInternals::LoadTextureInfo(
  const nlohmann::json& root, vtkGLTFDocumentLoader::TextureInfo& textureInfo)
{
  if (root.empty() || !root.is_object())
  {
    vtkErrorWithObjectMacro(this->Self, "Invalid textureInfo object");
    return false;
  }
  textureInfo.Index = -1;
  if (!vtkGLTFUtils::GetIntValue(root, "index", textureInfo.Index))
  {
    vtkErrorWithObjectMacro(this->Self, "Invalid textureInfo.index value");
    return false;
  }
  if (textureInfo.Index < 0)
  {
    vtkErrorWithObjectMacro(this->Self, "Invalid textureInfo.index value");
    return false;
  }

  textureInfo.TexCoord = 0;
  vtkGLTFUtils::GetIntValue(root, "texCoord", textureInfo.TexCoord);

  auto extRootIt = root.find("extensions");
  if (extRootIt != root.end())
  {
    auto texTrRootIt = extRootIt.value().find("KHR_texture_transform");
    if (texTrRootIt != extRootIt.value().end())
    {
      vtkGLTFUtils::GetDoubleArray(texTrRootIt.value(), "scale", textureInfo.Scale);
      vtkGLTFUtils::GetDoubleArray(texTrRootIt.value(), "offset", textureInfo.Offset);
      vtkGLTFUtils::GetDoubleValue(texTrRootIt.value(), "rotation", textureInfo.Rotation);
      vtkGLTFUtils::GetIntValue(texTrRootIt.value(), "texCoord", textureInfo.TexCoord);
    }
  }

  return true;
}

//------------------------------------------------------------------------------
bool vtkGLTFDocumentLoaderInternals::LoadModelMetaData(