I don't know if it counts as OpenGL exactly, but Jon Kortink's Viewfinder card implemented true native hardware graphics acceleration on RISC OS. https://www.z

I don't know if it counts as OpenGL exactly, but Jon Kortink's Viewfinder card implemented true native hardware graphics acceleration on RISC OS. https://www.zeridajh.org/hardware/viewfinder/index.html https://www.zeridajh.org/hardware/viewfinder/index.html