fix: Reference texture/sampler in default shader for bind group layout

WebGPU auto layout requires all bindings to be used in shader.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/tools/shader_editor/index.html b/tools/shader_editor/index.html
index 269a752..6a1f1a2 100644
--- a/tools/shader_editor/index.html
+++ b/tools/shader_editor/index.html
@@ -474,7 +474,11 @@ struct CommonUniforms {
     let glow = 0.02 / (abs(d) + 0.02);
 
     let col = bg + vec3<f32>(circle) * vec3<f32>(0.8, 0.4, 0.9) + glow * 0.1 * vec3<f32>(0.6, 0.3, 0.8);
-    return vec4<f32>(col * uniforms.audio_intensity, 1.0);
+
+    // Sample base texture (unused but required for bind group layout)
+    let base = textureSample(txt, smplr, p.xy / uniforms.resolution);
+
+    return vec4<f32>(col * uniforms.audio_intensity + base.rgb * 0.0, 1.0);
 }`;
     }