MAMEWorld Forums - EmuChat - Re: Migrating old hlsl setup from v0.151 to v0.202

> Alright, I just moved on like everybody else and found a new set of HLSL parameters
> that I liked even more than my old one.
>
> However, I learned about BGFX in the last couple of days and I'm exploring migrating
> to it, if anything because when I load CPWizard while playing a game, the display
> switches almost immediately between the game and CPWizard, whereas this happens quite
> slowly with d3d. Also, it is the direction the MAME team is going and the old HLSL
> will be left behind, eventually obsoleting my setup again.
>
> In order to transfer my most recent, compatible HLSL raster setup to BGFX, I made a
> local copy of the BGFX hlsl.json file, found all the parameters from "regular" HLSL
> setup and changed them in that file. However, the resulting image was messed up. I
> traced the problem down to radial convergence and slot mask pixel count parameters.
>
> The radial convergence was way off using the same numbers that I had in regular HLSL
> so it looks like perhaps BGFX uses a different sort of scale for these parameters
> than plain HLSL. The slot mask pixel count in my HLSL settings is negative for both x
> and y (I got it from a forum) and works perfectly fine but in BGFX HLSL it's not even
> inside the allowable range which doesn't include negative numbers.
>
> Is there some decoder ring that will help me find equivalent values for these
> parameters between old HLSL and BGFX HLSL?
>
> Also, is it possible to have a BGFX shader for vector games like the regular HLSL
> MAME vector.ini preset, which looks fantastic?

FWIW, lately I've been the only one adding new features to HLSL which are added to both the D3D and BGFX versions. I continue to use the D3D driver for performance reasons and I will continue to port new features (assuming I create any) to both D3D and BGFX unless it is somehow impossible to add to D3D. Right now BGFX doesn't save parameters and doesn't support presets which is a big issue. I'm not sure what MAMEDev's vision for BGFX presets is going forward, but I'm hoping that it will work seamlessly with the D3D INIs.