Pipeline:
Implemented after geometry pass and before actual shading
Build visual perception model:
Derive per-pixel sample probability map P that assigns a single perceptual importance value in [0,1] for each feature.
Features
- Acuity
- Build a eccentricity fall-off model which is valid for more than 30degree.
- Revise the model based on eye motion (the fovea becomes a line)
- Should read Dropbox\OPENGL\papers\VISUAL SENSORY UNITS AND THE MINIMUM ANGLE OF RESOLUTION
- Attention
- Texture adaption:
- just use mipmap: remove high frequency to avoid aliasing
- 3 perceptual filters:
- Object Saliency Detection: Fo
- Silhouette Detection: Fs
- Highlight Detection: Fh
- Texture adaption:
- Brightness adaption