From e6c2e5418d67e9b4d12d2da74a81fc57e1147865 Mon Sep 17 00:00:00 2001
From: skal <pascal.massimino@gmail.com>
Date: Sun, 8 Feb 2026 22:44:37 +0100
Subject: feat(shaders): Standardize all shaders to use CommonUniforms
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Define CommonUniforms struct with standard fields:
- resolution: vec2<f32>
- aspect_ratio: f32
- time: f32
- beat: f32
- audio_intensity: f32

Updated 14 shaders to use CommonUniforms:
- Replaced width/height with resolution
- Unified intensity/audio_peak → audio_intensity
- Moved effect-specific params to EffectParams struct
- visual_debug.wgsl now uses GlobalUniforms.view_proj

All shaders now have consistent uniform interface.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
---
 assets/final/shaders/particle_spray_compute.wgsl | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'assets/final/shaders/particle_spray_compute.wgsl')

diff --git a/assets/final/shaders/particle_spray_compute.wgsl b/assets/final/shaders/particle_spray_compute.wgsl
index 55fa8e9..f1a4d43 100644
--- a/assets/final/shaders/particle_spray_compute.wgsl
+++ b/assets/final/shaders/particle_spray_compute.wgsl
@@ -5,15 +5,16 @@ struct Particle {
     color: vec4<f32>,
 };
 
-struct Uniforms {
-    intensity: f32,
+struct CommonUniforms {
+    resolution: vec2<f32>,
     aspect_ratio: f32,
     time: f32,
     beat: f32,
+    audio_intensity: f32,
 };
 
 @group(0) @binding(0) var<storage, read_write> particles: array<Particle>;
-@group(0) @binding(1) var<uniform> uniforms: Uniforms;
+@group(0) @binding(1) var<uniform> uniforms: CommonUniforms;
 
 fn hash(p: f32) -> f32 {
     return fract(sin(p) * 43758.5453);
@@ -30,7 +31,7 @@ fn main(@builtin(global_invocation_id) id: vec3<u32>) {
         let r = hash(f32(i) + uniforms.time);
         let angle = r * 6.28318;
         p.pos = vec4<f32>(0.0, 0.0, 0.0, 1.0);
-        p.vel = vec4<f32>(cos(angle), sin(angle), 0.0, 0.0) * (0.5 + hash(r) * 0.5) * (1.0 + uniforms.intensity * 2.0);
+        p.vel = vec4<f32>(cos(angle), sin(angle), 0.0, 0.0) * (0.5 + hash(r) * 0.5) * (1.0 + uniforms.audio_intensity * 2.0);
         p.color = vec4<f32>(hash(r + 0.1), hash(r + 0.2), 1.0, 1.0);
     }
     let new_pos = p.pos.xyz + p.vel.xyz * 0.016;
-- 
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