splat3d: CPU-SIMD 3D Gaussian Splatting forward renderer (Kerbl 2023)#153

Merged

AdaWorldAPI merged 15 commits into

claude/splat3d-cpu-simd-renderer-MAOO0

May 18, 2026

Commits on May 18, 2026

splat3d/PR1A: Spd3 SPD-3 math + EWA-sandwich SIMD batch (Smith 1961)
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splat3d/PR1A-fix: PP-13 audit fixes — bug fix + coverage gaps + bench fidelity
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splat3d/PR2C: GaussianBatch SoA storage + covariance(_x16) (PR 2 Slice C)
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splat3d/PR2D: degree-3 spherical harmonics RGB eval (PR 2 Slice D)
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splat3d/PR2-fix: PP-13 audit fixes — analytical SH ground truth + SoA offset coverage
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splat3d/PR3: EWA projection kernel J·W·Σ·Wᵀ·Jᵀ → 2D conic + depth (PR 3)
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splat3d/PR3-fix: PP-13 audit — analytical W-rotation test + remove dead scalar fn
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splat3d/PR4: 16×16 tile binner + (tile_id, depth)-sorted instance list (PR 4)
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splat3d/PR4-fix: PP-13 audit — tile-boundary ceil-div bug + sentinel + sub-tile coverage
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splat3d/PR5: per-tile alpha-blend rasterizer with F32x16 pixel rows (PR 5)
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splat3d/PR5-fix: PP-13 audit — row-level bottom-edge guard + clamp/divergence tests
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splat3d/PR6: SplatFrame + SplatRenderer double-buffer driver (PR 6)
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splat3d/PR7: end-to-end demo + PLY loader + e2e integration test (PR 7)
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splat3d/PR7-fix: reject overflowing PLY vertex counts before allocation
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splat3d: cargo fmt --all pass across all sprint files
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