Forum Discussion
Lens distortion model for DirectX raytracing based rendering?
I'm interested in experimenting with VR rendering using DirectX raytracing where the Rift lens distortion could be directly corrected in the ray generation shader rather than rendering an undistorted...
I would be more interested in the ability to provide a custom post-timewarp shader. That way it would be possible to do things like temporal antialiasing or some other reconstruction filter in the native screen space of the rift, lowering the cost and increasing the quality. This would be a nice place to put something like the new deep learning antialiasing.
For ray generation, I don't imagine it would be worth it for the image quality gains, because you would give up the latency reduction of timewarp by doing the distorted projection at the beginning of the frame rather than at the end. I would rather ray trace a noisy image the old fashioned way, then correct the noise and reconstruct a sharp image in post-distortion screen space.
For ray generation, I don't imagine it would be worth it for the image quality gains, because you would give up the latency reduction of timewarp by doing the distorted projection at the beginning of the frame rather than at the end. I would rather ray trace a noisy image the old fashioned way, then correct the noise and reconstruct a sharp image in post-distortion screen space.