Seus Ptgi Works With Iris Or Oculus |work| -

If you want path-traced beauty without compatibility headaches, try Bliss or Rethinking Voxels shaders—both are built specifically for Iris/Oculus and offer 90% of SEUS PTGI’s quality at better performance.

Optifine was the original gateway for shaders, but it is closed-source, slow to update, and often incompatible with other performance mods. Iris (and its Forge sibling Oculus) changed the game by offering: seus ptgi works with iris or oculus

| Feature | SEUS PTGI HRR 2.1/3.0 | Iris 1.6+ / Oculus | Status | | :--- | :--- | :--- | :--- | | | ✅ Full support | ✅ Works perfectly | Good | | Volumetric Fog | ✅ Yes | ✅ Supported | Good | | Emissive Textures | ✅ Yes | ✅ Supported | Good | | Custom Skyboxes | ✅ Yes | ✅ Supported | Good | | Water Refraction | ✅ Yes | ✅ Supported | Good | | LabPBR (PBR textures) | ✅ Yes | ✅ Supported (Iris 1.6+) | Good | | Hand/Item Shadows | ✅ Yes | ⚠️ Broken/Glitchy in some versions | Fair | | Colored Shadows | ✅ Yes | ✅ Works | Good | | Waving Plants/Wind | ✅ Yes | ✅ Works | Good | This is where SEUS PTGI gets tricky

However, Iris/Oculus use a different shader packing system and feature set than Optifine. This is where SEUS PTGI gets tricky. Early versions of Iris struggled with it, but

Not all versions of SEUS PTGI are created equal when it comes to these new loaders.

: This is the most recent and popular version. Early versions of Iris struggled with it, but newer releases (Iris 1.6+ and equivalent Oculus versions) have implemented the necessary fixes for it to run correctly.

| GPU Tier | Recommended Settings | | :--- | :--- | | | 1080p, Render Quality: 1x, Shadow Quality: 0.5x, FPS: 50-70 | | RTX 3070 Ti / RX 6800 | 1440p, Render: 1x, Shadow: 1x, FPS: 60-80 | | RTX 3080 / 4070+ | 1440p/4K, Render: 1.5x, Shadow: 1x, FPS: 80-120 | | GTX 1080 Ti / RTX 2060 | 1080p, Render: 0.8x, Shadow: 0.5x, FPS: 35-50 |