https://github.com/rmn20/normalmappingds

Per-Vertex Radiosity Normal Mapping for Nintendo DS
https://github.com/rmn20/normalmappingds

3d homebrew nds nds-homebrew nintendo-ds normal-mapping retro shaders

Last synced: 8 days ago
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Per-Vertex Radiosity Normal Mapping for Nintendo DS

• Host: GitHub
• URL: https://github.com/rmn20/normalmappingds
• Owner: rmn20
• License: cc0-1.0
• Created: 2024-01-25T18:04:11.000Z (12 months ago)
• Default Branch: master
• Last Pushed: 2024-01-28T20:50:48.000Z (12 months ago)
• Last Synced: 2024-01-28T21:39:44.204Z (12 months ago)
• Topics: 3d, homebrew, nds, nds-homebrew, nintendo-ds, normal-mapping, retro, shaders
• Language: C
• Homepage:
• Size: 936 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Per-Vertex Radiosity Normal Mapping for Nintendo DS  

Based on [SIGGRAPH2007_EfficientSelfShadowedRadiosityNormalMapping.pdf](https://cdn.cloudflare.steamstatic.com/apps/valve/2007/SIGGRAPH2007_EfficientSelfShadowedRadiosityNormalMapping.pdf)  

  

The geometry is rendered 3 times with alpha blending enabled to achieve normalmapping. Original paper uses 3-pass additive blending, but it can be replaced with alpha blending.  

  

Two 32-color textures with 3-bit alpha are used for rendering. (First texture is used twice with alpha blending disabled on the first rendering pass and enabled on the second)  

![image](/images/screenshot.png)