PotatoRender

A mod that removes Ambient Occlusion and adds rendering resolution adjustment feature.
this can achieve higher FPS with significant visual tradeoffs.
Supports both OpenGL and Vulkan renderer.

DISCLAIMER

PotatoRender might not improve your rendering performance significantly. Performance difference might vary on hardwares and drivers, OS, etc. PotatoRender does not optimize graphic pipeline nor removes bottleneck. It just cuts some corners. It is mainly developed for experimental purposes and fun, not actual problem solving. In test setup with Ryzen 5900HX integrated graphics laptop, the performance only improved to 230FPS from 190FPS.

Requirements

• Minecraft 26.2 or later (see mod's release notes)
• Fabric Loader
• Fabric API

Mod configuration example

{
  // sets rendering resolution scaling. setting this as 0.5 in 1080p window should set rendering to 540p.
  "scale": 0.25,
  
  // disables Ambient Occlusion if set true. true is faster and looks unappealing.
  "disableAO": true, 
  
  // Use linear filtering when upscaling (true) or nearest-neighbor (false). false is faster and looks unappealing.
  "linearFilter": true 
}

Recommended Graphics Settings

VSync: OFF (IMPORTANT!)

VSync typically increases latency too much.

Preset: Fast

'Fast' graphics preset should set most of the features to potato-friendly value.

Mipmap: OFF

Mipmap increases frame time with distant object visual improvements. While the 'Fast' graphics preset will lower Mipmap level to 2x, it is better to turn it off entirely.

Texture Filtering: OFF

'Fast' graphics preset should shut this off, but double check it is turned off.

FPS Limit: depends

Double your display refresh rate on <=120Hz monitor, Unlimited on >120Hz monitor. Setting it so will keep lowest 1% FPS above your monitor's refresh rate.

Recommended mods

• C2ME: Concurrently builds up the chunks.
• Ksyxis: Removes 'Spawn Chunks' feature.
• fast noise: Speeds up perlin noise function used by world generation

Porting

i will not port this onto neoforge, forge, older versions, whatever.

Source

some sources are from RenderScale mod. affected files are marked with comments in source code.