Rek from PS2NFO.com has released a library to try and help homebrew writers create 3D graphics in their programs. You can grab it from our downloads section or just click here.

what works:

Raster lines
Raster polygons
Filled raster polygons
3d lines
3d wireframe polygons
3d filled polygons

What’s still to be done:

Backface culling
Z-Buffering
Text rendering
User input library

The render library was designed to resemble OpenGL, but seriously stripped down. It does what it should, draw (flat) polygons. The raster library may also be of interest. Anyway, this is still very early and probably has a few bugs… Post them here and I’ll try to fix them up for the next release. The only problem that comes to mind at the moment is that the axis passed to rend_rotate must be normalized, since I haven’t got an implementation of sqrt() yet and can’t do it there.

trig.rb is a Ruby script that generates my precalculated sin, cos and tan tables.

All the library code (render.*, matrix.*, raster.*, test.c, trig.*) is under the BSD license. The rest (startup.S, param.sfo, icon0.png, etc) were taken from nemnem’s helloworld.

The demo program (eboot.pbp, test.c) is a sample of how to draw stuff. left, right, up, down, triangle, X, R and L to move the triangle around.