[mschuetz]

Exactly. Things like that already work with a workaround: You can use Cuda-OpenGL interop to expose an OpenGL framebuffer in CUDA, then you can simply write into that framebuffer from your CUDA kernel, and afterwards you get back to OpenGL to display it on screen. Just directly integrate that functionality in CUDA by providing a CUDA native framebuffer and a present(buffer) or buffer swap functionality.