Add mouse, resolution, and time-based uniforms to bloomShaderCallback

preview/global/sketch.js

@@ -71,15 +71,27 @@ function pixellizeShaderCallback() {
 
 function bloomShaderCallback() {
   const preBlur = uniformTexture(() => originalFrameBuffer);
+  const mouse = uniformVec2(() => [mouseX, mouseY]);
+  const resolution = uniformVec2(() => [width, height]);
+  const millisUniform = uniformFloat(() => millis());
+  const frameCountUniform = uniformFloat(() => frameCount);
+  const deltaTimeUniform = uniformFloat(() => deltaTime);
+
   getColor((input, canvasContent) => {
-    const blurredCol = texture(canvasContent, input.texCoord);
-    const originalCol = texture(preBlur, input.texCoord);
-    const brightPass = max(originalCol, 0.3) * 1.5;
-    const bloom = originalCol + blurredCol * brightPass;
-    return bloom;
+    const uv = input.texCoord;
+    const blurredCol = texture(canvasContent, uv);
+    const originalCol = texture(preBlur, uv);
+
+    // Simple animated bloom effect
+    const brightness = dot(originalCol.rgb, vec3(0.2126, 0.7152, 0.0722));
+    const pulse = sin(millisUniform * 0.001 + uv.x * 10.0);
+    const bloomGlow = originalCol.rgb * smoothstep(0.8, 1.0, brightness * pulse);
+
+    return vec4(originalCol.rgb + bloomGlow, originalCol.a);
   });
 }
 
+
 async function setup(){
   createCanvas(windowWidth, windowHeight, WEBGL);
   stars = buildGeometry(() => sphere(30, 4, 2))

src/webgl/ShaderGenerator.js

@@ -54,6 +54,23 @@ function shadergenerator(p5, fn) {
     }
   }
 
+  /**
+ * Built-in uniforms for p5.strands shaders:
+ *
+ * These uniforms are automatically available in shaders created
+ * using p5.strands (e.g., baseFilterShader().modify(...)):
+ *
+ * - `mouse`: A vec2 uniform containing the current mouse position (mouseX, mouseY)
+ * - `resolution`: A vec2 uniform of the current canvas size (width, height)
+ * - `millis`: A float uniform representing elapsed time in milliseconds
+ * - `frameCount`: A float uniform counting total frames rendered
+ * - `deltaTime`: A float uniform for time difference between frames
+ *
+ * These allow shader authors to access common time/input data
+ * without manually setting them via setUniform().
+ */
+
+
   // AST Transpiler Callbacks and helper functions
   function replaceBinaryOperator(codeSource) {
     switch (codeSource) {