> I saw this one a new addition, as of 140u4. > > In layman terms, what does it do?
HLSL programs in fact allows for 3D effects (shaders: usually small collections of arithmetic code which can work on 3D coordinates or pixels) to be computed on your graphics card, which in turn can alter the appeareance of MAME's rasterized graphics output. As for now, to more authentically simulate the output of arcade monitors, like colors bleeding into each other, jitter, or slightly curved glass surfaces.
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