feat: implement variable height for node shader

app/src/lib/graph-interface/helpers/nodeHelpers.ts

@@ -38,7 +38,6 @@ export function getSocketPosition(
     const inputs = nodeType.inputs || {};
     for (const inputKey in inputs) {
       const h = getParameterHeight(nodeType, inputKey) / 10;
-      console.log({ inputKey, h });
       if (inputKey === index) {
         height += h / 2;
         break;
@@ -61,7 +60,6 @@ export function getNodeHeight(node: NodeDefinition) {
     return 5;
   }
   let height = 5;
-  console.log('Get Node Height', node.id);
 
   for (const key in node.inputs) {
     const h = getParameterHeight(node, key) / 10;

app/src/lib/graph-interface/node/Node.frag

@@ -1,56 +1,88 @@
-
 varying vec2 vUv;
 
 uniform float uWidth;
 uniform float uHeight;
+uniform float uZoom; 
 
 uniform vec3 uColorDark;
 uniform vec3 uColorBright;
-
 uniform vec3 uStrokeColor;
-uniform float uStrokeWidth;
+
+const float uHeaderHeight = 5.0; 
+uniform float uSectionHeights[16]; 
+uniform int uNumSections;
 
 float msign(in float x) { return (x < 0.0) ? -1.0 : 1.0; }
+float sdCircle(vec2 p, float r) { return length(p) - r; }
 
 vec4 roundedBoxSDF( in vec2 p, in vec2 b, in float r, in float s) {
   vec2 q = abs(p) - b + r;
   float l = b.x + b.y + 1.570796 * r;
-
   float k1 = min(max(q.x, q.y), 0.0) + length(max(q, 0.0)) - r;
   float k2 = ((q.x > 0.0) ? atan(q.y, q.x) : 1.570796);
   float k3 = 3.0 + 2.0 * msign(min(p.x, -p.y)) - msign(p.x);
   float k4 = msign(p.x * p.y);
   float k5 = r * k2 + max(-q.x, 0.0);
-
   float ra = s * round(k1 / s);
   float l2 = l + 1.570796 * ra;
-
   return vec4(k1 - ra, k3 * l2 + k4 * (b.y + ((q.y > 0.0) ? k5 + k2 * ra : q.y)), 4.0 * l2, k1);
 }
 
 void main(){
+  float strokeWidth = mix(2.0, 0.5, uZoom);
+  
+  float borderRadius = 0.5;
+  float dentRadius = 0.8;
 
-  float y = (1.0-vUv.y) * uHeight;
+  float y = (1.0 - vUv.y) * uHeight;
   float x = vUv.x * uWidth;
-
   vec2 size = vec2(uWidth, uHeight);
-  vec2 uv = (vUv - 0.5) * 2.0;
+  vec2 uvCenter = (vUv - 0.5) * 2.0;
 
-  float u_border_radius = 0.4;
-  vec4 distance = roundedBoxSDF(uv * size, size, u_border_radius*2.0, 0.0);
+  vec4 boxData = roundedBoxSDF(uvCenter * size, size, borderRadius * 2.0, 0.0);
+  float sceneSDF = boxData.w;
 
-  if (distance.w > 0.0 ) {
-    // outside
-    gl_FragColor = vec4(0.0,0.0,0.0, 0.0);
-  }else{
-    if (distance.w > -uStrokeWidth || mod(y+5.0, 10.0) < uStrokeWidth/2.0) {
-      // draw the outer stroke
-      gl_FragColor = vec4(uStrokeColor, 1.0);
-    }else if (y<5.0){
-      // draw the header
-      gl_FragColor = vec4(uColorBright, 1.0);
-    }else{
-      gl_FragColor = vec4(uColorDark, 1.0);
-    }
+  vec2 headerDentPos = vec2(uWidth, uHeaderHeight * 0.5);
+  float headerDentDist = sdCircle(vec2(x, y) - headerDentPos, dentRadius);
+  sceneSDF = max(sceneSDF, -headerDentDist*2.0);
+
+  float currentYBoundary = uHeaderHeight;
+  float previousYBoundary = uHeaderHeight;
+
+  for (int i = 0; i < 16; i++) {
+    if (i >= uNumSections) break;
+    
+    float sectionHeight = uSectionHeights[i];
+    currentYBoundary += sectionHeight;
+    
+    float centerY = previousYBoundary + (sectionHeight * 0.5);
+    vec2 circlePos = vec2(0.0, centerY);
+    float circleDist = sdCircle(vec2(x, y) - circlePos, dentRadius);
+    
+    sceneSDF = max(sceneSDF, -circleDist*2.0);
+    previousYBoundary = currentYBoundary;
+  }
+
+  if (sceneSDF > 0.05) { 
+    gl_FragColor = vec4(0.0, 0.0, 0.0, 0.0);
+    return;
+  }
+
+  vec3 finalColor = (y < uHeaderHeight) ? uColorBright : uColorDark;
+  bool isDivider = false;
+
+  float dividerY = uHeaderHeight;
+  if (abs(y - dividerY) < strokeWidth * 0.25) isDivider = true;
+  
+  for (int i = 0; i < 16; i++) {
+    if (i >= uNumSections - 1) break;
+    dividerY += uSectionHeights[i];
+    if (abs(y - dividerY) < strokeWidth * 0.25) isDivider = true;
+  }
+
+  if (sceneSDF > -strokeWidth || isDivider) {
+    gl_FragColor = vec4(uStrokeColor, 1.0);
+  } else {
+    gl_FragColor = vec4(finalColor, 1.0);
   }
 }

app/src/lib/graph-interface/node/Node.svelte

@@ -5,7 +5,7 @@
   import { type Mesh } from 'three';
   import { getGraphState } from '../graph-state.svelte';
   import { colors } from '../graph/colors.svelte';
-  import { getNodeHeight } from '../helpers/nodeHelpers';
+  import { getNodeHeight, getParameterHeight } from '../helpers/nodeHelpers';
   import NodeFrag from './Node.frag';
   import NodeVert from './Node.vert';
   import NodeHtml from './NodeHTML.svelte';
@@ -15,9 +15,10 @@
   type Props = {
     node: NodeInstance;
     inView: boolean;
-    z: number;
   };
-  let { node = $bindable(), inView, z }: Props = $props();
+  let { node = $bindable(), inView }: Props = $props();
+
+  const nodeType = $derived(node.state.type!);
 
   const isActive = $derived(graphState.activeNodeId === node.id);
   const isSelected = $derived(graphState.selectedNodes.has(node.id));
@@ -30,16 +31,29 @@
         : colors.outline)
   );
 
+  const sectionHeights = $derived(
+    Object
+      .keys(nodeType.inputs || {})
+      .map(key => getParameterHeight(nodeType, key) / 10)
+      .filter(b => !!b)
+  );
+
   let meshRef: Mesh | undefined = $state();
 
   const height = getNodeHeight(node.state.type!);
 
+  const zoom = $derived(graphState.cameraPosition[2]);
+
   $effect(() => {
     if (meshRef && !node.state?.mesh) {
       node.state.mesh = meshRef;
       graphState.updateNodePosition(node);
     }
   });
+  const zoomValue = $derived(
+    (Math.log(graphState.cameraPosition[2]) - Math.log(1)) / (Math.log(40) - Math.log(1))
+  );
+  // const zoomValue = (graphState.cameraPosition[2] - 1) / 39;
 </script>
 
 <T.Mesh
@@ -48,7 +62,7 @@
   position.y={0.8}
   rotation.x={-Math.PI / 2}
   bind:ref={meshRef}
-  visible={inView && z < 7}
+  visible={inView && zoom < 7}
 >
   <T.PlaneGeometry args={[20, height]} radius={1} />
   <T.ShaderMaterial
@@ -58,14 +72,19 @@
     uniforms={{
       uColorBright: { value: colors['layer-2'] },
       uColorDark: { value: colors['layer-1'] },
-      uStrokeColor: { value: colors['layer-2'].clone() },
-      uStrokeWidth: { value: 1.0 },
+      uStrokeColor: { value: colors.outline.clone() },
+      uSectionHeights: { value: [5, 10] },
+      uNumSections: { value: 2 },
       uWidth: { value: 20 },
-      uHeight: { value: height }
+      uHeight: { value: 200 },
+      uZoom: { value: 1.0 }
     }}
-    uniforms.uStrokeColor.value={strokeColor.clone()}
-    uniforms.uStrokeWidth.value={(7 - z) / 3}
+    uniforms.uZoom.value={zoomValue}
+    uniforms.uHeight.value={height}
+    uniforms.uSectionHeights.value={sectionHeights}
+    uniforms.uNumSections.value={sectionHeights.length}
+    uniforms.uStrokeColor.value={strokeColor}
   />
 </T.Mesh>
 
-<NodeHtml bind:node {inView} {isActive} {isSelected} {z} />
+<NodeHtml bind:node {inView} {isActive} {isSelected} z={zoom} />

app/src/lib/graph-interface/node/NodeParameter.svelte

@@ -43,7 +43,7 @@
   const path = $derived(
     createNodePath({
       depth: 6,
-      height: 1700 / height,
+      height: 2000 / height,
       y: 50.5,
       cornerBottom,
       leftBump,
@@ -53,7 +53,7 @@
   const pathHover = $derived(
     createNodePath({
       depth: 7,
-      height: 2000 / height,
+      height: 2200 / height,
       y: 50.5,
       cornerBottom,
       leftBump,

packages/ui/src/lib/app.css

@@ -3,10 +3,10 @@
   prefix: "i";
 }
 
-@source inline("{hover:,}{bg-,outline-,text-,}layer-0");
-@source inline("{hover:,}{bg-,outline-,text-,}layer-1");
-@source inline("{hover:,}{bg-,outline-,text-,}layer-2");
-@source inline("{hover:,}{bg-,outline-,text-,}layer-3");
+@source inline("{hover:,}{bg-,outline-,text-,}layer-0{/30,/50,}");
+@source inline("{hover:,}{bg-,outline-,text-,}layer-1{/30,/50,}");
+@source inline("{hover:,}{bg-,outline-,text-,}layer-2{/30,/50,}");
+@source inline("{hover:,}{bg-,outline-,text-,}layer-3{/30,/50,}");
 @source inline("{hover:,}{bg-,outline-,text-,}active");
 @source inline("{hover:,}{bg-,outline-,text-,}selected");
 @source inline("{hover:,}{bg-,outline-,text-,}outline{!,}");