Patrix looks flat without a shader that supports PBR and LabPBR standards. or SEUS Renewed (Highly recommended for Patrix) BSL Shaders Kappa Shaders

After installing, you'll need to adjust specific OptiFine settings to ensure the pack functions correctly and to fix any visual issues.:

A modern GPU (NVIDIA GTX 1070/RTX 2060 or better) is recommended. Installation Guide: Patrix-Resource-Pack-256x-1.16.5.zip

However, if you are on lower-end hardware or prefer a free option, the is an excellent starting point that will still vastly improve your game without melting your computer..

Packs like SEUS PTGI , BSL Shaders , or Complementary Shaders are required to activate the 3D depth and reflections. How to Install Patrix-Resource-Pack-256x-1.16.5.zip

Running a 256x pack with PBR features requires a capable GPU (ideally an RTX 2060 or better) and at least 4GB of RAM specifically allocated to Minecraft. The "Basic" vs. "Full" experience: