x2048

Implement rendering pipeline and post-processing

30

This PR implements rendering pipeline as described in #12411 [Alternative B](https://github.com/minetest/minetest/issues/12411#issuecomment-1149209408) and a minimal post-processing shader on top of the pipeline. Fixes #12411 and fixes #5446 ## To do This...

This PR fixes two things: 1. When smooth light is disabled, makes visible brightness of NDT_SOLID and other draw types the same at the same light level:  2. Corrects...

Calculate sky color using raw brightness without gamma correction

1

Fixes #10258 In the calculation of sky color I've replace light-curve-corrected perceptive brightness in night/dawn/day detection rules with light-curve-agnostic linear brightness based on `time_of_day`. Time points for dawn are preserved...

Add antialiasing filters (FXAA, SSAA)

19

Adds FXAA and SSAA post-processing filter controlled by `antialiasing` setting. FXAA is based on WebGL code circulating on the internet, MIT-licensed. SSAA is a simple render to 2x the texture...

Draft: Untie FPS cap from client tick / input rate

3

This PR Makes the game run smoother when playing at capped FPS which could be useful to save battery on mobile devices allowing client to tick more frequently than drawing...