SciCraft/client_pack/shaderpacks/README.md

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SCICRAFT Shader Pack — Complementary Reimagined (r5.4)

The modpack uses Iris Shaders (native NeoForge 1.21.1) as the shader loader. Download Complementary Reimagined r5.4 and drop it in this folder:

4GB VRAM / Performance presets

Open Iris: Esc → Options… → Shader Packs… → Complementary Reimagined → Shader Pack Settings.

Recommended for 4GB VRAM graphics cards:

Setting Recommended value
Preset Fast (Performance mode)
Render Distance 8 chunks (matches server view-distance)
Antialiasing OFF
SSAO Fast
Shadow Quality 1.0x (0.5x for very weak GPUs)
Shadow Distance 64
Bloom OFF or Low
Clouds 2D Fast
Water Reflections Screenspace Fast
Colored Light OFF
Block Light / Entity Ambient OFF

Optional: enable "Vanilla Tweaks → Clear Glass" so Connected Glass mods remain visible through shaders.

Conflicts / Notes

  • Iris & Oculus Flywheel Compat is bundled so Create's Flywheel renderer keeps working with shaders. If you see flywheel errors, toggle the compat mod's config or set Flywheel backend to "INSTANCING" in the Create config.
  • Shaders are client-only. The server pack has no shader loader.
  • If FPS drops hard, first lower Shadow Quality and disable Bloom before reducing render distance.