Read Paper: Adaptive Image Space Sampling for Gaze-Contingent Real-time Rendering

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
  • Brightness adaption

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