3 commits

Author	SHA1	Message	Date
Samuel Bouchet	f166394b60	Phase 3: per-material bleed flags + patch-based terrain for blend testing ... - Add bleedMask/resistBleedMask bitmasks to CB for per-material blend control - Grass: canBleed + resistsBleed (bleeds onto others, nothing bleeds onto it) - Stone: no bleed (doesn't overflow, but accepts bleed from others) - Other materials: normal bidirectional blending - PS checks flags before blending: mainResists → skip, !neighCanBleed → skip - Flatten terrain (heightScale 64→20) for better surface visibility - Replace altitude-based material bands with noise-based 2D patches (3 noise channels create organic patches of all 5 materials on surface) - Make stone/sand more visually distinct (stone=blue-gray, sand=warm yellow) - Lower stone heightContrast (1.2→0.5) so neighbors bleed onto it more	2026-03-26 12:47:10 +01:00
Samuel Bouchet	21f1bd1a12	Phase 2.5: GPU meshing production pipeline + perf optimizations (80+ FPS) ... Replace CPU greedy mesher with GPU compute mesher as default rendering pipeline. Key optimizations identified via CPU profiling (ProfileAccum, 5s averages): - Fused regenerate+pack: parallel noise gen + memcpy in same jobsystem pass (6ms → 0ms) - VoxelData memcpy: sizeof(VoxelData)==2 enables direct memcpy instead of bit-shift loop (28ms → <1ms) - Dirty-skip: GPU dispatch/upload only when chunks change, not every frame - Animation: 2 fBm octaves + no caves in animation mode (54ms → 8ms) - Result: 80-110 FPS with 60Hz terrain animation, 700+ FPS static	2026-03-26 09:05:52 +01:00
Samuel Bouchet	5f346bb14a	Phase 2: GPU-driven voxel rendering pipeline ... Mega-buffer architecture replacing per-chunk GPU buffers: - Single StructuredBuffer<PackedQuad> for all chunks (2M quads, 16 MB) - StructuredBuffer<GPUChunkInfo> with per-chunk metadata (position, quad offsets, face groups) - VS reads chunk info via push constants (b999) for driver-safe chunk indexing - CPU frustum culling with wi::primitive::Frustum + AABB per chunk - Quads sorted by face direction in greedy mesher (faceOffsets/faceCounts) - GPU frustum + backface cull compute shader (voxelCullCS.hlsl) - GPU binary mesher compute shader baseline (voxelMeshCS.hlsl) - Indirect draw buffers and timestamp query infrastructure - README with build instructions and project architecture	2026-03-25 14:24:05 +01:00