Example demonstrating pixel reprojection from a previous frame using velocity buffers.
- Fix velocity buffer in motion blur pass
- Fix discarded depth when zooming in
- Adjust depth comparison epsilon based on distance to camera -- changes "thickness" of depth buffer
- Add jitter
- use multiple samples
- See Insides [TRAA](https://github.com/playdeadgames/temporal/blob/master/Assets/Shaders/TemporalReprojection.shader example)
- Add accumulated data over multiple frames
- Make depth grab more precise to avoid pixels at edges of models getting data from behind.