More clean up

src/game-loop/game-loop-resources.ts

@@ -36,7 +36,6 @@ export class GameLoopResources {
   public readonly eraserAgentPipeline: EraserAgentPipeline;
   public readonly eraserTexturePipeline: EraserTexturePipeline;
   public readonly diffusionPipeline: DiffusionPipeline;
-  public readonly brushEffectDiffusionPipeline: DiffusionPipeline;
   public readonly renderPipeline: RenderPipeline;
 
   private readonly frameRenderer: SimulationFrameRenderer;
@@ -74,7 +73,6 @@ export class GameLoopResources {
     );
     this.eraserTexturePipeline = new EraserTexturePipeline(this.device, this.commonState);
     this.diffusionPipeline = new DiffusionPipeline(this.device);
-    this.brushEffectDiffusionPipeline = new DiffusionPipeline(this.device);
     this.renderPipeline = new RenderPipeline(context, this.device, this.commonState);
 
     this.frameRenderer = new SimulationFrameRenderer(this.device, this.textures, {
@@ -83,7 +81,6 @@ export class GameLoopResources {
       eraserAgentPipeline: this.eraserAgentPipeline,
       eraserTexturePipeline: this.eraserTexturePipeline,
       diffusionPipeline: this.diffusionPipeline,
-      brushEffectDiffusionPipeline: this.brushEffectDiffusionPipeline,
       renderPipeline: this.renderPipeline,
     });
   }
@@ -94,6 +91,7 @@ export class GameLoopResources {
 
   public clearSimulation(): void {
     this.textures.clear();
+    this.frameRenderer.resetSourceMapActivity();
   }
 
   public setFrameParameters({
@@ -115,6 +113,7 @@ export class GameLoopResources {
     this.agentPipeline.setParameters({
       ...settings,
       deltaTime,
+      time,
       agentCount: activeAgentCount,
       moveSpeed:
         settings.moveSpeed *
@@ -138,6 +137,7 @@ export class GameLoopResources {
     this.eraserAgentPipeline.setParameters({
       agentCount: activeAgentCount,
       eraserMaskAlphaThreshold: settings.eraserMaskAlphaThreshold,
+      maskSize: canvasSize,
     });
     this.eraserTexturePipeline.setParameters({
       eraserSize: eraserPixelSize,
@@ -147,7 +147,6 @@ export class GameLoopResources {
       eraserClearBlue: settings.eraserClearBlue,
       eraserClearAlpha: settings.eraserClearAlpha,
     });
-    this.setBrushEffectDiffusionParameters();
   }
 
   public executeFrame(
@@ -164,20 +163,8 @@ export class GameLoopResources {
     this.eraserAgentPipeline.destroy();
     this.eraserTexturePipeline.destroy();
     this.diffusionPipeline.destroy();
-    this.brushEffectDiffusionPipeline.destroy();
     this.renderPipeline.destroy();
     this.commonState.destroy();
     this.textures.destroy();
   }
-
-  private setBrushEffectDiffusionParameters(): void {
-    const framesToOneE = Math.max(
-      1,
-      settings.brushEffectDuration * appConfig.simulation.brushEffectFramesPerSecond
-    );
-    this.brushEffectDiffusionPipeline.setParameters({
-      ...settings,
-      decayRateTrails: Math.exp(-1 / framesToOneE) * 1000,
-    });
-  }
 }