Modded Minecraft Packs and Shaders

Disclaimer: I'm going to mention this up front. Optifine and Shaders are not officially supported by the FTB team. As it stands Optifine can't be included on packs hosted on CurseForge must be able to download all the associated mods from CurseForge itself. All FTB packs are currently being hosted on CurseForge.

So... For many minecraft packs people have wanted to add Shaders. The two that I have seen lately are FTB Continuum and FTB Revelations. As far as I can tell I have Shaders working fine in both. The issue is primarily the skybox. In the case of Continuum you have to disable the skybox in use in advanced Rocketry. For Revelations you have to do that plus add the overworld as having a weak skybox render so it doesn't load its custom one. Here are the edits if you want it to work. If there are any other packs with Shader issues let me know and I can try to work out what is needed to workaround the issues.

Skybox Fixes

config/advRocketry/advancedRocketry.cfg
Affects: FTB Revelations <2.0.0, FTB Continuum, All the Mods 3
Line 40
    B:PlanetSkyOverride=false
Line 43
    B:StationSkyOverride=false
Line 55
    B:overworldSkyOverride=false

config/astralsorcery.cfg
Affects: FTB Revelations
Line 171
Add 0 to S:weakSkyRenders so it shows like this:
    S:weakSkyRenders <
        0
     >

config/astralsorcery.cfg
Affects: All the Mods 3
Line 171
Add 0 to S:weakSkyRenders so it shows like this:
    S:weakSkyRenders <
        0
        -6
     >

On some packs TipTheScales is included to expand the options for UI scaling. If you install Optfine then crash when loading video settings then an older version is being packed in. You will want to disable or remove that mod to remove the conflict. The mod was later updated to disable itself if Optifine is detected as being present in order to avoid said crash.