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, 14 insertions, 8 deletions

diff --git a/assets/final/shaders/circle_mask_compute.wgsl b/assets/final/shaders/circle_mask_compute.wgsl
index 610ee67..9bb03ff 100644
--- a/assets/final/shaders/circle_mask_compute.wgsl
+++ b/assets/final/shaders/circle_mask_compute.wgsl
@@ -1,14 +1,20 @@
 // Circle mask compute shader
 // Generates a circular mask (1.0 inside, 0.0 outside)
 
-struct Uniforms {
-  radius: f32,
+struct CommonUniforms {
+  resolution: vec2<f32>,
   aspect_ratio: f32,
-  width: f32,
-  height: f32,
+  time: f32,
+  beat: f32,
+  audio_intensity: f32,
+};
+struct EffectParams {
+  radius: f32,
+  _pad: vec3<f32>,
 };
 
-@group(0) @binding(0) var<uniform> uniforms: Uniforms;
+@group(0) @binding(0) var<uniform> common: CommonUniforms;
+@group(0) @binding(1) var<uniform> params: EffectParams;
 
 struct VSOutput {
   @builtin(position) position: vec4<f32>,
@@ -21,13 +27,13 @@ struct VSOutput {
 }
 
 @fragment fn fs_main(@builtin(position) p: vec4<f32>) -> @location(0) vec4<f32> {
-  let uv = p.xy / vec2<f32>(uniforms.width, uniforms.height);
+  let uv = p.xy / common.resolution;
   let center = vec2<f32>(0.5, 0.5);
-  let aspect_corrected_uv = (uv - center) * vec2<f32>(uniforms.aspect_ratio, 1.0);
+  let aspect_corrected_uv = (uv - center) * vec2<f32>(common.aspect_ratio, 1.0);
   let dist = length(aspect_corrected_uv);
 
   let edge_width = 0.01;
-  let mask = smoothstep(uniforms.radius + edge_width, uniforms.radius - edge_width, dist);
+  let mask = smoothstep(params.radius + edge_width, params.radius - edge_width, dist);
 
   return vec4<f32>(mask, mask, mask, 1.0);
 }