Visualization libraries for GPU

I am currently running a GPGPU process on 2 GPUs and would like to send the output to a third GPU for visualization. I am currently doing this as a post process job by creating image slices(gifs) and using these as frames for a video.

I am not interested in doing the low level graphics programming and was wondering whether any libraries or products are available that will allow the near “real time” visualization of the scientific/engineering data.