MAMEWorld Forums - EmuChat - Re: xBRZ Shaders for MAME and HBMAME

The BGFX shader syntax is pretty much identical to GLSL. As example you can take a look at the already implemented HQx pixel filter.

e.g. /mame/src/osd/modules/render/bgfx/shaders/chains/hqx

You compile the shaders with the regular MAME build tools and the command line 'make shaders'. The shader binaries are built into /mame/bgfx/shaders/[backend]/[shader].

In addition you need to define some meta information like uniforms, sliders, targets and passes.

e.g. /mame/bgfx/effects/hqx
The format of the effects/*.json files is documented in /mame/bgfx/effects/default/blit.json.

e.g. /mame/bgfx/chains/hqx
The format of the chains/*.json files is documented in /mame/bgfx/chains/hlsl.json.