Iris（及 Oculus）的设计初衷就是为了替代 OptiFine 的光影部分。两者在渲染管道上存在底层冲突，。请确保你的 mods 文件夹中没有 OptiFine，并选择一个阵营长期使用。
A path-tracing shader pack that utilizes software ray tracing. It works on most modern graphics cards (Nvidia and AMD).
For the absolute best Minecraft ray-tracing experience, combining with the Iris/Oculus engine beats traditional OptiFine setups in both stability and frames per second. If you are building a massive modpack on Forge , deploying Oculus ensures you do not have to sacrifice modern performance optimizations to enjoy Sonic Ether’s breathtaking global illumination. seus ptgi iris compatibility oculus forge top
Your primary friction point is .
Historically, SEUS PTGI was designed primarily for . However, the landscape has shifted to Iris/Oculus because of their superior optimization (via Sodium). If you are building a massive modpack on
is a shader pack that introduces true path tracing to Minecraft, allowing for realistic lighting, soft shadows, and global illumination. Unlike traditional shaders, it does not rely on pre-calculated lighting, making it extremely resource-intensive, even on high-end hardware.
Download the latest version of (such as HRR 3 or E12). However, the landscape has shifted to Iris/Oculus because
SEUS PTGI is officially compatible with (Fabric/NeoForge) and Oculus (Forge). While originally designed for OptiFine, both modern alternatives now support SEUS PTGI HRR and standard PTGI versions. Fabric/NeoForge Users : Use Iris Shaders . Forge Users : Use Oculus , which is a Forge port of Iris.
✅ 解决方案 ：
Set to "Fast" or "Fancy," but avoid "Smart" if lighting bugs occur. 4. Why Oculus Wins for Forge Users
Here is the hard truth: However, you can achieve 90% of your goal by understanding the "Holy Trinity" conflict between rendering engines.