dpethes / 2d-rasterizer

Basic triangle software rasterizer with texture mapping

2D-rasterizer

Basic 2D triangle software rasterizer with texture mapping. Uses the half-space approach to find covered pixels. Features:

• texture mapping with nearest-neighbor or bilinear filtering
• subpixel precision
• resolution up to 2048x2048

References

• http://forum.devmaster.net/t/advanced-rasterization/6145 - basic setup / rasterization, subpixel precision, fill convention
• http://fgiesen.wordpress.com/2013/02/17/optimizing-sw-occlusion-culling-index/ - maths, optimalizations
• http://www1.eonfusion.com/manual/index.php/Formulae_for_interpolation - vertex attribute interpolation (link doesn't work anymore, search archive.org)

Compilation

Use recent Freepascal (2.6.0 and higher) to compile, older versions will likely work as well, but are untested.

TODO

documentation, demo