feature: add boundingbox, improve neuro section

src/entities/BoundingBox.ts

@@ -0,0 +1,119 @@
+import { Entity } from '../heck/Entity';
+import { InstancedGeometry } from '../heck/InstancedGeometry';
+import { Material } from '../heck/Material';
+import { Mesh } from '../heck/components/Mesh';
+import { Vector3 } from '@fms-cat/experimental';
+import { auto } from '../globals/automaton';
+import { createSVGTableTexture } from '../utils/createSVGTableTexture';
+import { dummyRenderTarget, dummyRenderTargetFourDrawBuffers } from '../globals/dummyRenderTarget';
+import { gl, glCat } from '../globals/canvas';
+import { objectValuesMap } from '../utils/objectEntriesMap';
+import boundingBoxFrag from '../shaders/bounding-box.frag';
+import boundingBoxVert from '../shaders/bounding-box.vert';
+import { Geometry } from '../heck/Geometry';
+
+export class BoundingBox extends Entity {
+  public constructor() {
+    super();
+
+    // -- create buffers ---------------------------------------------------------------------------
+    const arrayPos = [
+      -1, -1, -1,
+      1, -1, -1,
+      -1, 1, -1,
+      1, 1, -1,
+      -1, -1, 1,
+      1, -1, 1,
+      -1, 1, 1,
+      1, 1, 1,
+    ];
+    const arrayInd = [
+      0, 1,
+      0, 2,
+      0, 4,
+      1, 3,
+      1, 5,
+      2, 3,
+      2, 6,
+      3, 7,
+      4, 5,
+      4, 6,
+      5, 7,
+      6, 7,
+    ];
+
+    const bufferPos = glCat.createBuffer();
+    bufferPos.setVertexbuffer( new Float32Array( arrayPos ) );
+
+    const bufferInd = glCat.createBuffer();
+    bufferInd.setIndexbuffer( new Uint16Array( arrayInd ) );
+
+    // -- create geometry --------------------------------------------------------------------------
+    const geometry = new Geometry();
+
+    geometry.vao.bindVertexbuffer( bufferPos, 0, 3 );
+    geometry.vao.bindIndexbuffer( bufferInd );
+
+    geometry.count = 24;
+    geometry.mode = gl.LINES;
+    geometry.indexType = gl.UNSIGNED_SHORT;
+
+    // -- create materials -------------------------------------------------------------------------
+    const forward = new Material(
+      boundingBoxVert,
+      boundingBoxFrag,
+      {
+        defines: [ 'FORWARD 1' ],
+        initOptions: { geometry, target: dummyRenderTarget },
+      },
+    );
+
+    const depth = new Material(
+      boundingBoxVert,
+      boundingBoxFrag,
+      {
+        defines: [ 'SHADOW 1' ],
+        initOptions: { geometry, target: dummyRenderTarget },
+      },
+    );
+
+    const materials = { forward, cubemap: forward, depth };
+
+    objectValuesMap( materials, ( material ) => {
+      // auto( 'BoundingBox/phaseWidth', ( { value } ) => {
+      //   material.addUniform( 'phaseWidth', '1f', value );
+      // } );
+
+      // auto( 'Sync/first/clap', ( { value } ) => {
+      //   material.addUniform( 'phaseOffset', '1f', value );
+      // } );
+
+      // auto( 'BoundingBox/hahaRatio', ( { value } ) => {
+      //   material.addUniform( 'hahaRatio', '1f', value );
+      // } );
+    } );
+
+    if ( process.env.DEV ) {
+      if ( module.hot ) {
+        module.hot.accept(
+          [
+            '../shaders/bounding-box.vert',
+            '../shaders/bounding-box.frag',
+          ],
+          () => {
+            forward.replaceShader( boundingBoxVert, boundingBoxFrag );
+            depth.replaceShader( boundingBoxVert, boundingBoxFrag );
+          },
+        );
+      }
+    }
+
+    // -- create meshes ----------------------------------------------------------------------------
+    const mesh = new Mesh( {
+      geometry,
+      materials,
+      name: process.env.DEV && 'BoundingBox/mesh',
+    } );
+    this.components.push( mesh );
+  }
+}

src/entities/LightsPink.ts

@@ -22,7 +22,7 @@ export class LightsPink extends Entity {
     this.lights = ( [
       [ [ 6000.0, 10.0, 200.0 ], [ 8.0, 4.0, -8.0 ], true ],
       [ [ 6000.0, 10.0, 200.0 ], [ -8.0, 4.0, -8.0 ], true ],
-      [ [ 30.0, 30.0, 30.0 ], [ 0.0, 4.0, 4.0 ], false ],
+      [ [ 10.0, 14.0, 20.0 ], [ 0.0, -4.0, 4.0 ], false ],
     ] as TypeScriptSucks ).map( ( [ color, pos, isSpot ], i ) => {
       const light = new LightEntity( {
         scenes,

src/entities/Wobbleball.ts

@@ -1,9 +1,10 @@
+import { BoundingBox } from './BoundingBox';
 import { Entity } from '../heck/Entity';
 import { Geometry } from '../heck/Geometry';
 import { Lambda } from '../heck/components/Lambda';
 import { Material } from '../heck/Material';
 import { Mesh, MeshCull } from '../heck/components/Mesh';
-import { Vector3 } from '@fms-cat/experimental';
+import { Quaternion, Vector3 } from '@fms-cat/experimental';
 import { auto } from '../globals/automaton';
 import { dummyRenderTarget, dummyRenderTargetFourDrawBuffers } from '../globals/dummyRenderTarget';
 import { genOctahedron } from '../geometries/genOctahedron';
@@ -105,5 +106,16 @@ export class Wobbleball extends Entity {
     } );
     mesh.cull = MeshCull.None;
     this.components.push( mesh );
+
+    // -- bounding box -----------------------------------------------------------------------------
+    const boundingBox = new BoundingBox();
+
+    boundingBox.transform.rotation = Quaternion.fromAxisAngle(
+      new Vector3( [ 0.0, 0.0, 1.0 ] ),
+      0.25 * Math.PI,
+    );
+    boundingBox.transform.scale = new Vector3( [ 1.2, 1.2, 1.2 ] );
+
+    this.children.push( boundingBox );
   }
 }

src/shaders/bounding-box.frag

@@ -0,0 +1,44 @@
+#version 300 es
+
+precision highp float;
+
+#define saturate(i) clamp(i,0.,1.)
+#define linearstep(a,b,x) saturate(((x)-(a))/((b)-(a)))
+
+in vec4 vPositionWithoutModel;
+in vec4 vPosition;
+
+#ifdef FORWARD
+  out vec4 fragColor;
+#endif
+
+#ifdef SHADOW
+  out vec4 fragColor;
+
+  uniform vec2 cameraNearFar;
+  uniform vec3 cameraPos;
+#endif
+
+uniform float time;
+
+void main() {
+  float phase = vPositionWithoutModel.x + vPositionWithoutModel.y + vPositionWithoutModel.z;
+  float pattern = sin( phase * 40.0 + 10.0 * time );
+
+  if ( pattern < 0.0 ) {
+    discard;
+  }
+
+  #ifdef FORWARD
+    fragColor = vec4( 1.0 );
+  #endif
+
+  #ifdef SHADOW
+    float depth = linearstep(
+      cameraNearFar.x,
+      cameraNearFar.y,
+      length( cameraPos - vPosition.xyz )
+    );
+    fragColor = vec4( depth, depth * depth, depth, 1.0 );
+  #endif
+}

src/shaders/bounding-box.vert

@@ -0,0 +1,22 @@
+#version 300 es
+
+layout (location = 0) in vec3 position;
+
+out vec4 vPositionWithoutModel;
+out vec4 vPosition;
+
+uniform vec2 resolution;
+uniform mat4 projectionMatrix;
+uniform mat4 viewMatrix;
+uniform mat4 modelMatrix;
+
+void main() {
+  vPositionWithoutModel = vec4( position, 1.0 );
+  vPosition = modelMatrix * vPositionWithoutModel;
+
+  vec4 outPos = projectionMatrix * viewMatrix * vPosition;
+  outPos.x *= resolution.y / resolution.x;
+  gl_Position = outPos;
+
+  vPosition.w = outPos.z / outPos.w;
+}

src/shaders/ifs-piston.frag

@@ -55,7 +55,7 @@ vec3 ifs( vec3 p, vec3 r, vec3 t ) {
   mat3 bas = orthBasis( r );
 
   for ( int i = 0; i < 6; i ++ ) {
-    p = abs( p ) - abs( s ) * pow( 1.7, -float( i ) );
+    p = abs( p ) - abs( s ) * pow( 1.8, -float( i ) );
 
     s = bas * s;
 
@@ -72,32 +72,34 @@ float box( vec3 p, vec3 s ) {
 }
 
 vec4 map( vec3 p ) {
-  p.y += 10.0;
-
-  float d1, d2;
+  vec4 isect;
 
   {
     vec3 pt = p;
 
-    float clampbox = box( pt - vec3( 0.0, 10.0, 0.0 ), vec3( 1.0, 10.0, 1.0 ) - 0.1 );
+    float clampbox = box( pt, vec3( 1.0, 10.0, 1.0 ) );
+
+    pt.y += 10.0;
 
     vec3 r = mix(
       fs( vec3( 4.7, 2.2, 8.3 ) + floor( ifsSeed ) ),
       fs( vec3( 4.7, 2.2, 8.3 ) + floor( ifsSeed + 1.0 ) ),
       fract( ifsSeed )
     );
-    vec3 t = 0.1 * vec3( 3.0, 2.3, 3.5 );
+    vec3 t = 0.1 * vec3( 4.2, 3.5, 2.2 );
     pt = ifs( pt, r, t );
 
     pt = mod( pt - 0.1, 0.2 ) - 0.1;
 
-    d1 = max( box( pt, vec3( 0.02 ) ), clampbox );
+    isect = vec4( max( box( pt, vec3( 0.04 ) ), clampbox ), 2, 0, 0 );
   }
 
   {
     vec3 pt = p;
 
-    float clampbox = box( pt - vec3( 0.0, 10.0, 0.0 ), vec3( 1.0, 10.0, 1.0 ) );
+    float clampbox = box( pt, vec3( 1.0, 10.0, 1.0 ) - 0.1 );
+
+    pt.y += 10.0;
 
     vec3 r = mix(
       fs( vec3( 5.3, 1.1, 2.9 ) + floor( ifsSeed ) ),
@@ -109,10 +111,20 @@ vec4 map( vec3 p ) {
 
     pt = mod( pt - 0.1, 0.2 ) - 0.1;
 
-    d2 = max( box( pt, vec3( 0.07 ) ), clampbox );
+    vec4 isectb = vec4( clampbox, 2, 0, 0 );
+    isect = isectb.x < isect.x ? isectb : isect;
   }
 
-  return d1 < d2 ? vec4( d1, 1, 0, 0 ) : vec4( d2, 2, 0, 0 );
+  {
+    vec3 pt = abs( p );
+
+    float d = box( pt - vec3( 1.0, 0.0, 1.0 ), vec3( 0.02, 9.9, 0.02 ) );
+
+    vec4 isectb = vec4( d, 3, 0, 0 );
+    isect = isectb.x < isect.x ? isectb : isect;
+  }
+
+  return isect;
 }
 
 vec3 normalFunc( vec3 p, float dd ) {
@@ -159,7 +171,7 @@ void main() {
     fragNormal = vec4( modelNormal, 1.0 );
 
     if ( isect.y == 2.0 ) {
-      vec3 noise = cyclicNoise( 6.0 * rayPos );
+      vec3 noise = cyclicNoise( 3.0 * rayPos );
       vec3 noiseDetail = cyclicNoise( vec3( 38.0, 1.0, 1.0 ) * ( orthBasis( vec3( 1 ) ) * rayPos ) );
       float roughness = (
         0.6 +
@@ -167,11 +179,14 @@ void main() {
         0.2 * smoothstep( -0.2, 0.4, noise.y ) * ( 0.8 + 0.2 * sin( 17.0 * noiseDetail.x ) )
       );
 
-      fragColor = vec4( vec3( 0.04 ), 1.0 );
+      fragColor = vec4( vec3( 0.4 ), 1.0 );
       fragWTF = vec4( vec3( roughness, 0.9, 0.0 ), 2 );
     } else if ( isect.y == 1.0 ) {
       fragColor = vec4( vec3( 1.0 ), 1.0 );
       fragWTF = vec4( vec3( 0.3, 0.1, 0.0 ), 2 );
+    } else if ( isect.y == 3.0 ) {
+      fragColor = vec4( vec3( 1.0, 0.001, 0.03 ), 1.0 );
+      fragWTF = vec4( vec3( 0.1, 0.1, 1.0 ), 2 );
     }
 
   #endif

src/shaders/wobbleball.frag

@@ -132,7 +132,7 @@ void main() {
     discard;
   }
 
-  vec3 modelNormal = ( normalMatrix * vec4( normalFunc( rayPos, 1E-3 ), 1.0 ) ).xyz;
+  vec3 modelNormal = ( normalMatrix * vec4( normalFunc( rayPos, 1E-2 ), 1.0 ) ).xyz;
 
   vec4 modelPos = modelMatrix * vec4( rayPos, 1.0 );
   vec4 projPos = projectionMatrix * viewMatrix * modelPos; // terrible