ppsspp

preserve-emulation/ppsspp

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Henrik RydgårdandClaude Opus 5.5 5aa0faa340 SoftGPU: A directional light with a zero direction gives no diffuse

It used (0, 0, 1) instead, lighting everything facing the camera. The PSP
leaves the direction zero: no diffuse, and specular from the eye vector
alone (gpu/probe exp164). ULJM05302 has such a light on its cars, and the
Yu-Gi-Oh (ULJM05940) replay becomes exact.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-10-02 15:09:43 -06:00

BinManager.cpp

SoftGPU: Self-texturing primitives sample the texture as it was before them

2026-10-02 15:09:43 -06:00

BinManager.h

SoftGPU: Self-texturing primitives sample the texture as it was before them

2026-10-02 15:09:43 -06:00

Clipper.cpp

SoftGPU: Clip vertex texture coordinates in GE arithmetic

2026-10-02 15:09:43 -06:00

Clipper.h

SoftGPU: Clip at the near plane like the GE

2026-10-02 15:09:42 -06:00

DrawPixel.cpp

SoftGPU: Signed doubled inverse alpha blend factors

2026-10-02 15:09:43 -06:00

DrawPixel.h

SoftGPU: Recompute the raster state after a JIT cache clear

2026-09-29 09:35:17 -06:00

DrawPixelX86.cpp

SoftGPU x86 jit: Fix the NAND logic op

2026-10-02 15:09:43 -06:00

FuncId.cpp

SoftGPU: Fix the stencil test's comparison shortcuts

2026-10-02 15:09:43 -06:00

FuncId.h

softgpu: Support fog and color1 on imm verts.

2022-09-18 06:16:26 -07:00

GEMath.cpp

SoftGPU: Antialiased line coverage with a plane-style slope

2026-10-02 15:09:43 -06:00

GEMath.h

SoftGPU: Antialiased line alpha from the setup reciprocal

2026-10-02 15:09:43 -06:00

Lighting.cpp

SoftGPU: A directional light with a zero direction gives no diffuse

2026-10-02 15:09:43 -06:00

Lighting.h

SoftGPU: Light vectors as one matrix row from the model position

2026-10-02 15:09:43 -06:00

Rasterizer.cpp

SoftGPU: Line endpoints on a diamond's major-axis corner are outside

2026-10-02 15:09:43 -06:00

Rasterizer.h

SoftGPU: Self-texturing primitives sample the texture as it was before them

2026-10-02 15:09:43 -06:00

RasterizerRectangle.cpp

SoftGPU: Don't join bilinear-filtered through-mode sprites

2026-10-02 15:09:43 -06:00

RasterizerRectangle.h

SoftGPU: Keep textured rectangles as triangles unless they'd match

2026-10-02 15:09:42 -06:00

RasterizerRegCache.cpp

GPU: modernize use C++17 constexpr for precalculate compilation

2026-05-19 21:57:45 +03:00

RasterizerRegCache.h

Delete remains of support for the MIPS architecture as host

2026-02-17 10:20:51 +01:00

README.txt

…

Sampler.cpp

SoftGPU: Make arm64 and x86 render the GE probes identically

2026-10-02 15:09:43 -06:00

Sampler.h

SoftGPU: Sprite UVs and texel addressing like the GE

2026-10-02 15:09:42 -06:00

SamplerX86.cpp

SoftGPU: Separate mipmap CLUTs for CLUT8 too

2026-10-02 15:09:42 -06:00

SoftGpu.cpp

SoftGPU: Evaluate spline patches as the GE does

2026-10-02 15:09:43 -06:00

SoftGpu.h

SoftGPU: Fix black screenshots with the DarkStalkers present hack

2026-10-01 12:57:36 -06:00

TransformUnit.cpp

SoftGPU: Light vectors as one matrix row from the model position

2026-10-02 15:09:43 -06:00

TransformUnit.h

SoftGPU: Light vectors as one matrix row from the model position

2026-10-02 15:09:43 -06:00

trirast.txt

…

README.txt

To get to 100% compatibility, we will need a software renderer as there are games out there that do tricks
that can't really be faked in a sensible way. Useful for homebrew too that mix sw and accel rendering.