CPU-RTRM

CPU Real-Time Raymarcher is a renderer based on raymarching distance-fields. It runs exclusively on CPU at interactive frame-rates for relatively simple scenes.

It was a project to learn about SIMD, cache-friendly programming and profiling/optimization.

Demo video: https://youtu.be/sUoEbEefhfQ

Details

• Developed with C++.
• Raymarching based on sphere tracing.
• Architecture built around SIMD capabilities, using packs of rays. Supports SSE and AVX.
• Naive multi-threading for the extra speed boost.
• Implementation of Blinn-Phong lighting, Ambient Occlusion and fog.