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{{Infobox PSP Homebrews | {{Infobox PSP Homebrews | ||
|title=Yeti3D - Yeti | |title=Yeti3D - Yeti | ||
|image= | |image=Yeti3dbe2003.png | ||
|description=A 3D engine originally built by Derek Evans for the Game Boy Advance back in 2003. | |description=A 3D engine originally built by Derek Evans for the Game Boy Advance back in 2003. | ||
|author=be2003 | |author=be2003 | ||
Revision as of 11:59, 7 November 2021
| Yeti3D - Yeti | |
|---|---|
 | |
| General | |
| Author | be2003 |
| Type | Game engine |
| Version | 0.1 |
| License | Mixed |
| Last Updated | 2007/04/28 |
| Links | |
| Download | |
| Website | |
| Source | |
Yeti3D is a pure PSP port of Yeti3D that is not dependent on SDL, it contains the source and compiled eboot. It was later renamed to Yeti-PSP (according to developer the updated version had not been realeased).
Features
- The current viewport is 120x80 pixels, 15bit.
- All textures are 64x64 8bit.
- Textures are converted to 15bit via a pre-calculated lighting LUT.
- Polygons can be any convex shape. Only squares are currently used.
- Each vertex is described as X, Y, Z, U, V and brightness.
- The renderer uses 24:8 fixed point maths.
- Polygons are clipped in 3D space using 45 degree planes. Distance to plane calculations therefore use only additions and subtractions.
- Polygon edges are clipped using one divide and 6 multiplies.
- 4 clipping planes are used. No front plane is required. No back plane is used.
- No per-span clipping is used. Fixed point errors are hidden offscreen.
Installation
It comes with 2 versions:
- EBOOT.PBP - Regular version that runs smoothly.
- FAST_EBOOT.PBP - Essentially the same but without the restrictions of sceDisplayWaitVblankStart.
External links
- Author's website - https://be2003.wordpress.com/2007/04/28/yeti3d-port