How do you adjust the hlsl settings in MAME 2016? I looked all over in vain.
Is it even possible?
Our MAME cores are software-rendered (i.e., not using d3d), so HLSL isn’t accessible. You should use our shader pipeline instead.
What would be the shader equivalent to hlsl?
Rather than having one single shader that you adjust settings on, we have a variety of shaders that each perform differently (and then have their own settings that you can adjust).
Probably the best places to start for something similar to MAME’s HLSL would be in the CRT subdirectory: crt-geom, crt-lottes or crt-hyllian. Crt-easymode and crt-royale are very good, too. You should just play around and see which one(s) you like most, though.
Once the shader preset is loaded, you can go into the ‘parameters’ menu and tweak the shader’s settings to make it brighter, darker, etc.