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LibSoftGPU: Implement 5 bits of subpixel precision
This snaps vertices to 1/32 of a pixel before rasterization resulting in smoother movement and less floaty appearance of moving triangles. This also reduces the severity of the artifacts in the glquake port. 5 bits should allow up to 1024x1024 render targets. Anything larger needs a different implementation.
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2 changed files with 15 additions and 12 deletions
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@ -17,6 +17,7 @@ namespace SoftGPU {
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static constexpr bool ENABLE_STATISTICS_OVERLAY = false;
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static constexpr int RASTERIZER_BLOCK_SIZE = 8;
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static constexpr int NUM_SAMPLERS = 32;
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static constexpr int SUBPIXEL_BITS = 5;
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// See: https://www.khronos.org/opengl/wiki/Common_Mistakes#Texture_edge_color_problem
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// FIXME: make this dynamically configurable through ConfigServer
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