A voxel engine built from scratch. Real-time global illumination, ray-traced shadows, procedural worlds.
Rust + wgpu — ~32k lines of code
A voxel engine built from scratch. Real-time global illumination, ray-traced shadows, procedural worlds.
Rust + wgpu — ~32k lines of code
Everything built from the ground up — no game engine, no shortcuts.
Real-time GI in a 256³ voxel volume using DDA ray marching. Hard and soft shadows via voxel tracing — no shadow maps. Per-vertex AO baked with DDA hemisphere tracing using Amanatides & Woo traversal.
Reduces triangle count 10-20x versus naive cubes. Multi-draw indirect rendering batches ~2,200 chunks into a single draw call. 4 LOD levels by distance with compute shader frustum culling on GPU.
God rays via a 3-pass pipeline: half-res DDA ray march, bilateral blur, and composite. Temporal dithering with Henyey-Greenstein phase function, adjustable 24-72 sample steps.
Heightfield rendering with pipe-model flow simulation. Ray-marched fullscreen water pass with wave animation, Fresnel reflections, refraction, and underwater fog.
8 biomes (grasslands, desert, jungle, tundra, mountains, ocean, swamp, cavernous highlands) with 3D Perlin caves, ore veins, procedural trees, vegetation, and ruins. Region file persistence with zstd compression at 3:1 ratio.
3D positional audio with material-based sound categories. DDA raycast occlusion crossfades ambience between environments. Convolution reverb in caves, footstep material detection, and music system with crossfade transitions.
3rd-person camera with skeletal animation and FBX model loading via ufbx. Character customization for outfits, hair, and heads. Body part editor with bone-driven skinned meshes lit by the voxel GI system.
Hybrid morphological-temporal AA with depth edge detection, pattern matching, temporal accumulation, and sharpening. Depth of field with near/far blur layers. Bloom, SSAO, and greedy-meshed voxel clouds with terrain shadows.
Some of the implementation details.