Issues with GLSLP presets?

[z0n]

Hi, first of all thanks for the great work, NextUI has come a long way!

This is more of a question than a bug report:
I wanted to use the Pixel Transparency Shaders but the release notes state that there's some issue with the TrimUI Brick not supporting GLSLP presets:

TrimUI Brick users have reported issues. By default, the Brick doesn't support GLSLP presets. You need to install the RetroArch Pak from the NextUI Pak Store which has full GL shader support so you can load up the presets. An alternative is to switch over to muOS.

Is that something that could be added to NextUI without having to install RetroArch which seems to be the workaround?

[DrFlarp]

Hi,

Pixel_Transparency's notes are misleading. In this case the glslp file just tells RetroArch's shader engine which glsl files to run in which order with some config fields. You can make your own NextUI .cfg preset which more or less does the same thing, or set up the shaders in the menu.

Just put the glsl file in Shaders/glsl and select it in the NextUI menu. As of now (v6.9.3) it doesn't work out of the box but there are a few workarounds:

• if feat: enable OrigTexture in glsl shaders, fix shader UI desync #679 gets merged, pixel transparency will fully work without modification
• community member SkyWalker541 has made their own shader with Brick+NextUI compat in mind
• I have a forked version of pixel transparency on the NextUI discord which patches away the missing field at the expense of not being able to append it to an LCD shader

Anyways, I'm always willing to look into requests / inquiries regarding NextUI compatibility of individual glsl shaders, a lot of people have been excited about Pixel_Transparency and we've definitely noticed :)

[z0n]

Nice! Thanks for the hint, I went with the config from SkyWalker541 for now 🙂

[DrFlarp]

NP!

One issue with .glslp support is having to support the whole format in our shader pipeline. Although we do keep libretro compatibility in mind, it's not our goal to be a 100% copy of retroarch, especially when it was made to scale up to 4K desktop environments.

That said, I think there's an interesting case here for some kind of .glslp to NextUI .cfg converter / script / pak if anyone wants to take that on.

happy to investigate any individual shader problems/requests on the Discord!