Pixel motion blur is a post-process effect that blurs pixels based on object velocities to simulate motion blur without needing multiple frame renders. It works by rendering the scene to a texture, calculating a velocity buffer, and using the velocities to blur the final rendered image. However, it has limitations like not handling occlusions properly. Improvements involve using stretched object geometry between frames and iterative sampling over multiple passes. While effective for games, pixel motion blur has challenges for character animation due to vertex shader constant limits.
Pixel motion blur is a post-process effect that blurs pixels based on object velocities to simulate motion blur without needing multiple frame renders. It works by rendering the scene to a texture, calculating a velocity buffer, and using the velocities to blur the final rendered image. However, it has limitations like not handling occlusions properly. Improvements involve using stretched object geometry between frames and iterative sampling over multiple passes. While effective for games, pixel motion blur has challenges for character animation due to vertex shader constant limits.