Add shorthand aliases for code golfing

Author: ubitux

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 - Low resolution control
+- Shorthand aliases for code golfing
 
 ### Changed
 - Mouse position is only updated when pressing down

README.md

@@ -49,6 +49,14 @@ They must write on the `vec4 out_color` output to produce a color.
 
 The compatibility is currently set to `300 es`.
 
+### Shorthand aliases
+
+- `P`: `gl_FragCoord.xy`
+- `O`: `out_color`
+- `T`: `time`
+- `R`: `resolution`
+- `M`: `mouse`
+
 ## Live controls
 
 To expose controls to the web UI, declare a uniform in your fragment shader.

shader_workshop/frag.py

@@ -17,6 +17,12 @@
     uniform float time;
     uniform vec2 resolution;
     uniform vec2 mouse;
+
+    #define P gl_FragCoord.xy
+    #define O out_color
+    #define T time
+    #define R resolution
+    #define M mouse
     """
 )