: Generally works on recent versions of Iris (1.6.x+) and Oculus. Older versions of Iris (e.g., 1.2.1) had significant regressions causing PTGI 3 to fail, often appearing as "default Minecraft". SEUS PTGI HRR 2.1 & E12 : Highly stable on both Iris and Oculus. Forge Support
Switching shader packs in Iris/Oculus is nearly instantaneous.
To ensure the best compatibility with Iris and Oculus, look for these specific releases: seus ptgi iris compatibility oculus forge top
Download the official installer for your desired Minecraft version from the Minecraft Forge website. Run the installer and select . Step 2: Install Rubidium/Embeddium & Oculus Oculus requires a performance base mod to work on Forge.
This shader pack is remarkable for several reasons: : Generally works on recent versions of Iris (1
To help find the best configuration for your system, let me know: What (GPU) are you currently using? What Minecraft version are you planning to run?
Running SEUS PTGI on Forge with Oculus is the best way to get modern graphics in a heavily modded environment. While OptiFine was the old standard, the Oculus mod provides superior compatibility and performance. By managing your shadow quality and following the specific shader setting requirements, you can achieve the "top" visual performance. Forge Support Switching shader packs in Iris/Oculus is
Download your preferred version of SEUS PTGI (e.g., HRR 3) from Sonic Ether's official Patreon page or website.
Download (or Rubidium, depending on your Minecraft version) from CurseForge. This acts as the Forge equivalent to the Sodium optimization mod. Download Oculus from CurseForge. Drop both .jar files into your Minecraft mods folder. Step 3: Add SEUS PTGI
Launch Minecraft using the newly created "Iris & Sodium" profile in your launcher. Navigate to > Video Settings > Shader Packs .
| Mod Loader | Shader Mod | SEUS PTGI HRR 2.1 | SEUS PTGI HRR 3+ | |------------|------------|-------------------|------------------| | Fabric | Iris 1.7+ | Playable (minor glitches) | ❌ Broken | | Forge | Oculus 1.6+| Playable (same as Iris) | ❌ Broken | | Forge | OptiFine | ✅ Perfect | ✅ Perfect | | Fabric | OptiFine (via OptiFabric) | ✅ Perfect (but outdated mod support) | ✅ Perfect |