Christoph Oelckers 3209d4ed23 - added a few more texture coloring options to the shader. ... Aside from adding an additive component it can now also do: - desaturation (not limited to the range of 0..1 so it can also be used for oversaturation by applying a negative number or negative saturation by going above 1.0. - invert the texture - apply a blend, including 3 special mode taken from EDuke32. Currently only the implementation is done, it is not exposed to UDMF yet.		2019-12-20 16:05:00 +01:00
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glsl	- added a few more texture coloring options to the shader.	2019-12-20 16:05:00 +01:00