# 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:

- Modrinth: https://modrinth.com/shader/complementary-reimagined
  (installer button → "Download jar file", rename to `ComplementaryReimagined_r5.4.zip`)
- Mirrors: https://www.curseforge.com/minecraft/shaderpacks/complementary-reimagined

## 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.