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PGXP (Parallel/Precision Geometry Transform Pipeline) is an enhancement for PlayStation emulation that produces high precision fully 3D geometry data that was not available on the original console hardware.
- High Precision Vertex Data (more stable geometry)
- Reduced Triangle Culling (more detailed models)
- Perspective Correct Texture Mapping (reduced texture distortion)
First, it introduces subpixel precision to eliminate the wobbling polygon issues. Second, it adds perspective correct texturing to stop the ‘texture warping/dancing’ issues.