I am doing image processing from a camera. After capturing the image I copy it into a CUDA array and use texture fetches in a kernel to write to a mapped pixel buffer. Then, I render the pixel buffer using the opengl subimage2d command to put it into the rendered texture.
Since the original image is in a CUDA array, and therefore texture memory, is it possible to somehow directly render from that location if I wanted to render the input and output of the kernel side-by-side? It would seem silly to have to copy to cuda texture memory, then copy the input in a kernel to a pixel buffer just to copy it back to texture memory.
Thanks in advance,