Refactor: Move getNoiseShaderSnippet to strands backend

src/image/filterRenderer2D.js

@@ -17,7 +17,6 @@ import filterBaseVert from '../webgl/shaders/filters/base.vert';
 import webgl2CompatibilityShader from '../webgl/shaders/webgl2Compatibility.glsl';
 import { glslBackend } from '../webgl/strands_glslBackend';
 import { getShaderHookTypes } from '../webgl/shaderHookUtils';
-import noiseGLSL from '../webgl/shaders/functions/noise3DGLSL.glsl';
 import { makeFilterShader } from '../core/filterShaders';
 
 class FilterRenderer2D {
@@ -309,9 +308,6 @@ class FilterRenderer2D {
     return this._baseFilterShader;
   }
 
-  getNoiseShaderSnippet() {
-    return noiseGLSL;
-  }
 
   /**
    * Set the current filter operation and parameter. If a customShader is provided,

src/strands/strands_api.js

@@ -337,7 +337,7 @@ export function initGlobalStrandsAPI(p5, fn, strandsContext) {
       return originalNoise.apply(this, args); // fallback to regular p5.js noise
     }
     // Get noise shader snippet from the current renderer
-    const noiseSnippet = this._renderer.getNoiseShaderSnippet();
+    const noiseSnippet = strandsContext.backend.getNoiseShaderSnippet();
     strandsContext.vertexDeclarations.add(noiseSnippet);
     strandsContext.fragmentDeclarations.add(noiseSnippet);
     strandsContext.computeDeclarations.add(noiseSnippet);

src/webgl/p5.RendererGL.js

@@ -19,7 +19,6 @@ import { Image } from '../image/p5.Image';
 import { glslBackend } from './strands_glslBackend';
 import { TypeInfoFromGLSLName } from '../strands/ir_types.js';
 import { getShaderHookTypes } from './shaderHookUtils';
-import noiseGLSL from './shaders/functions/noise3DGLSL.glsl';
 
 import filterBaseVert from "./shaders/filters/base.vert";
 import lightingShader from "./shaders/lighting.glsl";
@@ -1905,10 +1904,6 @@ class RendererGL extends Renderer3D {
     }
   }
 
-  getNoiseShaderSnippet() {
-    return noiseGLSL;
-  }
-
 }
 
 function rendererGL(p5, fn) {

src/webgl/strands_glslBackend.js

@@ -1,3 +1,4 @@
+import noiseGLSL from './shaders/functions/noise3DGLSL.glsl';
 import { NodeType, OpCodeToSymbol, BlockType, OpCode, NodeTypeToName, isStructType, BaseType, StatementType, DataType, INSTANCE_ID_VARYING_NAME } from "../strands/ir_types";
 import { getNodeDataFromID, extractNodeTypeInfo } from "../strands/ir_dag";
 import * as FES from '../strands/strands_FES';
@@ -169,6 +170,9 @@ export const glslBackend = {
     }).join(', ')}) {`;
     return firstLine;
   },
+  getNoiseShaderSnippet() {
+    return noiseGLSL;
+  },
   getTypeName(baseType, dimension) {
     const primitiveTypeName = TypeNames[baseType + dimension]
     if (!primitiveTypeName) {

src/webgpu/p5.RendererWebGPU.js

@@ -14,7 +14,6 @@ import { materialVertexShader, materialFragmentShader } from './shaders/material
 import { fontVertexShader, fontFragmentShader } from './shaders/font';
 import { blitVertexShader, blitFragmentShader } from './shaders/blit';
 import { wgslBackend } from './strands_wgslBackend';
-import noiseWGSL from './shaders/functions/noise3DWGSL';
 import { baseFilterVertexShader, baseFilterFragmentShader } from './shaders/filters/base';
 import { imageLightVertexShader, imageLightDiffusedFragmentShader, imageLightSpecularFragmentShader } from './shaders/imageLight';
 import { baseComputeShader } from './shaders/compute';
@@ -3673,9 +3672,6 @@ ${hookUniformFields}}
       return super.filter(...args);
     }
 
-    getNoiseShaderSnippet() {
-      return noiseWGSL;
-    }
 
 
     baseFilterShader() {

src/webgpu/strands_wgslBackend.js

@@ -1,3 +1,4 @@
+import noiseWGSL from './shaders/functions/noise3DWGSL.js';
 import { NodeType, OpCodeToSymbol, BlockType, OpCode, NodeTypeToName, isStructType, BaseType, StatementType, DataType, INSTANCE_ID_VARYING_NAME } from "../strands/ir_types";
 import { getNodeDataFromID, extractNodeTypeInfo } from "../strands/ir_dag";
 import * as FES from '../strands/strands_FES';
@@ -263,6 +264,10 @@ export const wgslBackend = {
     }
     return primitiveTypeName;
   },
+  getNoiseShaderSnippet() {
+    return noiseWGSL;
+  },
+
   generateHookUniformKey(name, typeInfo) {
     // For sampler2D types, we don't add them to the uniform struct,
     // but we still need them in the shader's hooks object so that