CopyTexSubImage calls glReadBuffer only for color textures.
CopyTexSubImage calls glReadBuffer only for color textures.
MicBosi/visualizationlibrary,Wulfire/visualizationlibrary,Wulfire/visualizationlibrary,MicBosi/visualizationlibrary,MicBosi/visualizationlibrary,Wulfire/visualizationlibrary