feat(shaders): Standardize all shaders to use CommonUniforms

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>

1 files changed, 6 insertions, 5 deletions

diff --git a/assets/final/shaders/particle_render.wgsl b/assets/final/shaders/particle_render.wgsl
index 6a955f0..a0740dc 100644
--- a/assets/final/shaders/particle_render.wgsl
+++ b/assets/final/shaders/particle_render.wgsl
@@ -5,15 +5,16 @@ struct Particle {
     color: vec4<f32>,
 };
 
-struct Uniforms {
-    audio_peak: f32,
+struct CommonUniforms {
+    resolution: vec2<f32>,
     aspect_ratio: f32,
     time: f32,
     beat: f32,
+    audio_intensity: f32,
 };
 
 @group(0) @binding(0) var<storage, read> particles: array<Particle>;
-@group(0) @binding(1) var<uniform> uniforms: Uniforms;
+@group(0) @binding(1) var<uniform> uniforms: CommonUniforms;
 
 struct VSOut {
     @builtin(position) pos: vec4<f32>,
@@ -23,7 +24,7 @@ struct VSOut {
 
 @vertex fn vs_main(@builtin(vertex_index) vi: u32, @builtin(instance_index) ii: u32) -> VSOut {
     let p = particles[ii];
-    let size = 0.02 + p.pos.z * 0.01 + uniforms.audio_peak * 0.02;
+    let size = 0.02 + p.pos.z * 0.01 + uniforms.audio_intensity * 0.02;
     var offsets = array<vec2<f32>, 6>(
         vec2<f32>(-1, -1),
         vec2<f32>(1, -1),
@@ -40,7 +41,7 @@ struct VSOut {
 
     // Fade based on lifetime (p.pos.w goes from 1.0 to 0.0)
     let lifetime_fade = p.pos.w;
-    let color_with_fade = vec4<f32>(p.color.rgb * (0.5 + 0.5 * uniforms.audio_peak), p.color.a * lifetime_fade);
+    let color_with_fade = vec4<f32>(p.color.rgb * (0.5 + 0.5 * uniforms.audio_intensity), p.color.a * lifetime_fade);
 
     return VSOut(vec4<f32>(pos, 0.0, 1.0), color_with_fade, offset);
 }