A full replacement of the Minecraft lighting engine with an extendable API, shipping with Phosphor as a reference implementation.
Dependencies
Performance
The main performance improvement comes from the fact that the lighting engine is evaluated "lazily", thus it is able to batch more lighting updates into a single pass.
Here are some simple to understand values, generated via profiling a pre-set test case:
Test Case
- World Type: Default - World Seed: 123 - Game Mode: Creative - Render Distance: 16 Profiler is started right before clicking Create New World, and stopped after 10 seconds of flying in a straight line in creative mode. Without Lumi, the active server time spent in lighting engine is 34% of the total active server time (not counting when the server thread is sleeping). With Lumi, this fraction goes down to 13%, or an approximately 2.5x performance increase over vanilla.Flame Graphs
Horizontal axis is time, vertical axis is the call stack. The blue highlighted parts are calls to the lighting engine update method.  Incompatibilities
- ArchaicFix: Config Change Needed
- As both mods replace the same parts of code, naturally you will need to set
enablePhosphortofalsein the ArchaicFix config.
- As both mods replace the same parts of code, naturally you will need to set
- CoreTweaks: Config Change Needed
- The
fix_heightmap_rangefeature is already implemented in Lumi's lighting engine. Set it tofalsein the CoreTweaks config.
- The
Both of these configs will be automatically modified by Lumi automatically when you launch the game, so you shouldn't even need to edit the config files manually.
Authors
Credits
- embeddedt
- The initial port of Phosphor into 1.7.10
- CaffeineMC
- Creating the original Phosphor
