[Neoforge 1.21.1] Support of Shaders on Iris

[Dmac9244]

Malum looks gorgeous; I wish that I could see its many effects with my shaders on but for some reason they disappear whenever I turn shaders on in Iris.

I am not exactly sure where to start tracking down this issue, though every shader pack I have tried has failed to render the effects:

• Complementary + Euphoria (A combination which is very mod compatible)
• Photon
• BSL
• Solas
• Opal

The fact that the effects disappear using a few different shaders at different settings (tried Complementary + Euphoria at potato and ultra settings) leads me to believe this isn't an issue with a specific shader. The problem seems to be between Malum and Iris/Oculus, not Sodium/Embeddium as with shaders disabled the effects work fine. I'm not sure whose 'fault' it is but I figured it should be brought up so it can hopefully be fixed.

Additional details:

• Minecraft: 1.21.1
• Neoforge 21.1.193
• Malum: 1.7.3.1
• Sodium 0.6.13
• Iris 1.8.12

[Nordigoistired]

Im having this problem too
i tried switching to oculus and embedium in 1.21.1 and it still hides Malum's particles
It may be on Malum or Lodestone causing this but im not entirely sure

[Grymmette]

I could be wrong, but I think the issue is Iris issue #2198, specifically "Category 1" in Malum's case. Perhaps changing the particle ordering to another setting might allow Malum's effects to work again, but then that could introduce other bugs, as that report explains.

Alternatively, it might be the translucency issues mentioned in Iris's Shaderpack Bugs documentation. I say this because I think Malum uses deferred rendering and that's mentioned in that section as an incompatibility inherent to most shader packs.

[Dmac9244]

I can mess with the shader simply by playing with the shaders.properties file, right? On Complimentary + Euphoria I have played with before, mixed, and after and none of them seem to fix the issue.

If it's the deferred rendering thing, I have seen other mods have the same problem.

I'm not sure about the specifics, but it seems like you have to make the deferred-rendering not deferred, therefore making it impossible to have translucent particles. You can see what kind of effect this has in Botania in the link above.

[SammySemicolon]

It's the deferred renderer FYI, we have it hooked up to the iris pipeline in 1.20.1, just need to port it