See forum post: https://forum.kerbalspaceprogram.com/index.php?/topic/167450-19x-textures-unlimited-pbr-shader-texture-set-and-model-loading-api/&do=findComment&comment=3753097 https://forum.kerbalspaceprogram.com/index.php?/topic/167450-19x-textures-unlimited-pbr-shader-texture-set-and-model-loading-api/&do=findComment&comment=3753224
