Generally compatible with both Iris and Oculus.
| Component | Fabric Loader | Forge Loader | SEUS PTGI Support | | :--- | :--- | :--- | :--- | | | ✅ Native | ❌ No | ✅ Yes (Excellent) | | Oculus | ❌ No | ✅ Yes (port of Iris) | ✅ Yes (Identical to Iris) | | OptiFine | ❌ No | ✅ Yes | ⚠️ Broken/Glitchy (PTGI requires modern OpenGL core profile) |
How to install Distant Horizons 2.1 with Iris & Oculus Shaders
SEUS PTGI was originally built for . It uses specific OptiFine rendering hooks (like uniformWorldTime , specific shadow maps, and composite rendering). Neither Iris nor Oculus are 100% perfect replacements for all shaders—especially PTGI.