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Implement Powder Sugar Effect #27

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opened 2026-01-18 14:24:47 +00:00 by akadmin · 0 comments
akadmin commented 2026-01-18 14:24:47 +00:00
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Description:
Add custom darkening at cloud edges to create more realistic depth perception (Horizon paper's unique contribution).
Tasks:

  • Research powder sugar effect theory
  • Implement depth-based in-scattering approximation
  • Make effect view-dependent (stronger when looking away from sun)
  • Combine with Beer's Law transmittance
  • Add tuning parameters for effect strength
  • Test on thick cumulus clouds
  • Verify dark edges and lighter crevices

Acceptance Criteria:

Cloud edges darken realistically
Crevices appear lighter than bulges
Effect enhances depth perception
View dependency works correctly

Related Issues: Depends on #26
Resources:

Horizon paper powder effect section

Estimated Time: 2-3 days

Description: Add custom darkening at cloud edges to create more realistic depth perception (Horizon paper's unique contribution). Tasks: - [ ] Research powder sugar effect theory - [ ] Implement depth-based in-scattering approximation - [ ] Make effect view-dependent (stronger when looking away from sun) - [ ] Combine with Beer's Law transmittance - [ ] Add tuning parameters for effect strength - [ ] Test on thick cumulus clouds - [ ] Verify dark edges and lighter crevices Acceptance Criteria: Cloud edges darken realistically Crevices appear lighter than bulges Effect enhances depth perception View dependency works correctly Related Issues: Depends on #26 Resources: Horizon paper powder effect section Estimated Time: 2-3 days
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akadmin/NemesisEngine#27
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