Catalyst

Client-side performance patches for Create on NeoForge 1.21.1. Everything is toggleable in config/catalyst-client.toml.

Performance

• Blaze burner smoke costs ~46% of frame time in a burner chunk, so Catalyst spawns half the plumes and gives about 30% more FPS there.
• Your particle setting now applies to burner smoke, which Create deliberately bypassed.
• Multiblock tanks made Sodium process every segment when only the controller draws, dropping lighting cost from 2.10s to 0.17s in a tank farm.
• Fluid rendering copied two matrices per vertex, about 4,500 wasted objects per tank per frame.
• Distant fluid faces draw as one panel, turning a 3x30 tank wall from 90 quads into 1.
• Belt items stop drawing past 32 blocks, though the belt still renders.
• Belt stacks draw their pile of models within 8 blocks instead of 16, the main fix for belts carrying thousands of items.
• Belt lighting is reused between items on the same segment with no visual change.
• Machine display items on basins, depots, ejectors, saws, deployers and crafters stop drawing past 32 blocks.
• Filter and redstone link boxes stop drawing past 20 blocks.
• Create block entities stop rendering past 48 blocks instead of 64.
• Contraption rendering caches its Flywheel backend check per tick instead of per block entity per frame.
• The goggles check, which can scan Curios inventories every frame, is cached per tick.

Audio

• Machine farm stutter is fixed by limiting duplicate sound starts, measured at 3.1s of render thread stalls in 86 seconds.
• Crackling and cutting out audio in burner farms is fixed by capping campfire crackles at 2 per tick.
• A global budget limits Create sounds started per tick, with dropped plays retrying next cycle.
• Sounds are never limited by distance.

Compatibility

• Requires Create 6.0.0+ on 1.21.1 NeoForge.
• Tested with Sodium, Flywheel and Sable / Create Aeronautics.
• Compatibility with ScalableLux is added, just install ScalableLux + Aero + Create
• Airship blocks render and sound correctly because distance comes from the renderer, not the player.

Comparison

Before

After