I’m working on a custom postprocessing pass using SceneViewExtension, and I need motion vectors for every pixel. The Velocity buffer I can access via FPostProcessMaterialInputs works, but it only includes animated meshes and physics objects. My effect mostly works, but it would help a lot to have correct velocity for the entire screen. I’ve been experimenting with this method from GPU Gems 3 to generate my own velocity, but I haven’t had any luck. Has anyone else had this issue in the past?