Streamline brush settings

src/pipelines/agents/agent-generation/agent-first-generation.wgsl

@@ -21,7 +21,7 @@ fn main(
   let direction = position - center;
 
   agents[id] = Agent(
-    position,
+    state.size / 2.0,
     atan2(direction.y, direction.x),
     0,
   );

src/pipelines/brush/brush-pipeline.ts

@@ -119,11 +119,11 @@ export class BrushPipeline {
     this.linePoints.length = 0;
   }
 
-  public setParameters({ brushWidth, brushWidthVariation }: BrushSettings) {
+  public setParameters({ brushSize, brushSizeVariation }: BrushSettings) {
     this.device.queue.writeBuffer(
       this.uniforms,
       0,
-      new Float32Array([brushWidth / 2, (brushWidth / 2) * brushWidthVariation])
+      new Float32Array([brushSize / 2, Math.floor((brushSize / 2) * brushSizeVariation)])
     );
 
     this.actualPoints = this.linePoints.slice();
@@ -148,7 +148,7 @@ export class BrushPipeline {
         new Array(this.lineCount).fill(0).flatMap((_, i) => {
           const from = this.actualPoints[i];
           const to = this.actualPoints[i + 1];
-          const [a, b, c, d] = this.getSegmentBoundingBox(from, to, brushWidth / 2);
+          const [a, b, c, d] = this.getSegmentBoundingBox(from, to, brushSize / 2);
           return [a, b, c, b, c, d].flatMap((v) => [...v, ...from, ...to]);
         })
       )

src/pipelines/brush/brush-settings.ts

@@ -1,4 +1,4 @@
 export interface BrushSettings {
-  brushWidth: number;
-  brushWidthVariation: number;
+  brushSize: number;
+  brushSizeVariation: number;
 }

src/pipelines/brush/brush.wgsl

@@ -1,6 +1,6 @@
 struct Settings {
-  brushWidth: f32,
-  brushWidthVariation: f32
+  brushSize: f32,
+  brushSizeVariation: f32
 };
 
 @group(1) @binding(0) var<uniform> settings: Settings;
@@ -31,9 +31,9 @@ fn fragment(
 ) -> @location(0) vec4<f32> {
     var distance = distanceFromLine(screenPosition, start, end);
     let noise = textureSample(noise, noiseSampler, screenPosition / state.size / 50);
-    distance += noise.r * settings.brushWidthVariation;
+    distance += noise.r * settings.brushSizeVariation;
 
-    if(distance > settings.brushWidth) {
+    if(distance > settings.brushSize) {
       discard;
     }