8ac5940e33
This adds support for the extension and always set the clip state value to 0..1 to align with vulkan and metal. Moreover this is needed for the Reverse Z implementation. Note that this is a OpenGL 4.5 feature and is not required to start Blender. So there must still be a fallback path for now. Rel #138898 Pull Request: https://projects.blender.org/blender/blender/pulls/138941