521 lines
14 KiB
JavaScript
521 lines
14 KiB
JavaScript
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import {
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BufferAttribute,
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BufferGeometry,
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Color,
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DoubleSide,
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FileLoader,
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Group,
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Loader,
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Mesh,
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MeshBasicMaterial,
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RawShaderMaterial,
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TextureLoader,
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Quaternion,
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Vector3
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} from 'three';
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import * as fflate from '../libs/fflate.module.js';
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class TiltLoader extends Loader {
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load( url, onLoad, onProgress, onError ) {
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const scope = this;
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const loader = new FileLoader( this.manager );
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loader.setPath( this.path );
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loader.setResponseType( 'arraybuffer' );
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loader.setWithCredentials( this.withCredentials );
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loader.load( url, function ( buffer ) {
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try {
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onLoad( scope.parse( buffer ) );
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} catch ( e ) {
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if ( onError ) {
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onError( e );
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} else {
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console.error( e );
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}
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scope.manager.itemError( url );
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}
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}, onProgress, onError );
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}
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parse( buffer ) {
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const group = new Group();
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// https://docs.google.com/document/d/11ZsHozYn9FnWG7y3s3WAyKIACfbfwb4PbaS8cZ_xjvo/edit#
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const zip = fflate.unzipSync( new Uint8Array( buffer.slice( 16 ) ) );
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/*
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const thumbnail = zip[ 'thumbnail.png' ].buffer;
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const img = document.createElement( 'img' );
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img.src = URL.createObjectURL( new Blob( [ thumbnail ] ) );
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document.body.appendChild( img );
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*/
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const metadata = JSON.parse( fflate.strFromU8( zip[ 'metadata.json' ] ) );
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/*
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const blob = new Blob( [ zip[ 'data.sketch' ].buffer ], { type: 'application/octet-stream' } );
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window.open( URL.createObjectURL( blob ) );
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*/
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const data = new DataView( zip[ 'data.sketch' ].buffer );
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const num_strokes = data.getInt32( 16, true );
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const brushes = {};
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let offset = 20;
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for ( let i = 0; i < num_strokes; i ++ ) {
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const brush_index = data.getInt32( offset, true );
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const brush_color = [
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data.getFloat32( offset + 4, true ),
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data.getFloat32( offset + 8, true ),
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data.getFloat32( offset + 12, true ),
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data.getFloat32( offset + 16, true )
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];
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const brush_size = data.getFloat32( offset + 20, true );
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const stroke_mask = data.getUint32( offset + 24, true );
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const controlpoint_mask = data.getUint32( offset + 28, true );
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let offset_stroke_mask = 0;
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let offset_controlpoint_mask = 0;
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for ( let j = 0; j < 4; j ++ ) {
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// TOFIX: I don't understand these masks yet
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const byte = 1 << j;
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if ( ( stroke_mask & byte ) > 0 ) offset_stroke_mask += 4;
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if ( ( controlpoint_mask & byte ) > 0 ) offset_controlpoint_mask += 4;
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}
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// console.log( { brush_index, brush_color, brush_size, stroke_mask, controlpoint_mask } );
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// console.log( offset_stroke_mask, offset_controlpoint_mask );
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offset = offset + 28 + offset_stroke_mask + 4; // TOFIX: This is wrong
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const num_control_points = data.getInt32( offset, true );
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// console.log( { num_control_points } );
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const positions = new Float32Array( num_control_points * 3 );
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const quaternions = new Float32Array( num_control_points * 4 );
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offset = offset + 4;
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for ( let j = 0, k = 0; j < positions.length; j += 3, k += 4 ) {
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positions[ j + 0 ] = data.getFloat32( offset + 0, true );
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positions[ j + 1 ] = data.getFloat32( offset + 4, true );
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positions[ j + 2 ] = data.getFloat32( offset + 8, true );
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quaternions[ k + 0 ] = data.getFloat32( offset + 12, true );
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quaternions[ k + 1 ] = data.getFloat32( offset + 16, true );
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quaternions[ k + 2 ] = data.getFloat32( offset + 20, true );
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quaternions[ k + 3 ] = data.getFloat32( offset + 24, true );
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offset = offset + 28 + offset_controlpoint_mask; // TOFIX: This is wrong
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}
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if ( brush_index in brushes === false ) {
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brushes[ brush_index ] = [];
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}
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brushes[ brush_index ].push( [ positions, quaternions, brush_size, brush_color ] );
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}
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for ( const brush_index in brushes ) {
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const geometry = new StrokeGeometry( brushes[ brush_index ] );
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const material = getMaterial( metadata.BrushIndex[ brush_index ] );
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group.add( new Mesh( geometry, material ) );
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}
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return group;
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}
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}
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class StrokeGeometry extends BufferGeometry {
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constructor( strokes ) {
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super();
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const vertices = [];
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const colors = [];
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const uvs = [];
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const position = new Vector3();
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const prevPosition = new Vector3();
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const quaternion = new Quaternion();
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const prevQuaternion = new Quaternion();
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const vector1 = new Vector3();
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const vector2 = new Vector3();
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const vector3 = new Vector3();
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const vector4 = new Vector3();
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const color = new Color();
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// size = size / 2;
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for ( const k in strokes ) {
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const stroke = strokes[ k ];
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const positions = stroke[ 0 ];
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const quaternions = stroke[ 1 ];
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const size = stroke[ 2 ];
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const rgba = stroke[ 3 ];
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const alpha = stroke[ 3 ][ 3 ];
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color.fromArray( rgba ).convertSRGBToLinear();
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prevPosition.fromArray( positions, 0 );
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prevQuaternion.fromArray( quaternions, 0 );
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for ( let i = 3, j = 4, l = positions.length; i < l; i += 3, j += 4 ) {
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position.fromArray( positions, i );
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quaternion.fromArray( quaternions, j );
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vector1.set( - size, 0, 0 );
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vector1.applyQuaternion( quaternion );
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vector1.add( position );
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vector2.set( size, 0, 0 );
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vector2.applyQuaternion( quaternion );
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vector2.add( position );
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vector3.set( size, 0, 0 );
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vector3.applyQuaternion( prevQuaternion );
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vector3.add( prevPosition );
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vector4.set( - size, 0, 0 );
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vector4.applyQuaternion( prevQuaternion );
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vector4.add( prevPosition );
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vertices.push( vector1.x, vector1.y, - vector1.z );
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vertices.push( vector2.x, vector2.y, - vector2.z );
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vertices.push( vector4.x, vector4.y, - vector4.z );
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vertices.push( vector2.x, vector2.y, - vector2.z );
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vertices.push( vector3.x, vector3.y, - vector3.z );
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vertices.push( vector4.x, vector4.y, - vector4.z );
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prevPosition.copy( position );
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prevQuaternion.copy( quaternion );
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colors.push( ...color, alpha );
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colors.push( ...color, alpha );
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colors.push( ...color, alpha );
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colors.push( ...color, alpha );
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colors.push( ...color, alpha );
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colors.push( ...color, alpha );
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const p1 = i / l;
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const p2 = ( i - 3 ) / l;
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uvs.push( p1, 0 );
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uvs.push( p1, 1 );
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uvs.push( p2, 0 );
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uvs.push( p1, 1 );
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uvs.push( p2, 1 );
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uvs.push( p2, 0 );
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}
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}
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this.setAttribute( 'position', new BufferAttribute( new Float32Array( vertices ), 3 ) );
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this.setAttribute( 'color', new BufferAttribute( new Float32Array( colors ), 4 ) );
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this.setAttribute( 'uv', new BufferAttribute( new Float32Array( uvs ), 2 ) );
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}
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}
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const BRUSH_LIST_ARRAY = {
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'89d104cd-d012-426b-b5b3-bbaee63ac43c': 'Bubbles',
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'700f3aa8-9a7c-2384-8b8a-ea028905dd8c': 'CelVinyl',
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'0f0ff7b2-a677-45eb-a7d6-0cd7206f4816': 'ChromaticWave',
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'1161af82-50cf-47db-9706-0c3576d43c43': 'CoarseBristles',
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'79168f10-6961-464a-8be1-57ed364c5600': 'CoarseBristlesSingleSided',
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'1caa6d7d-f015-3f54-3a4b-8b5354d39f81': 'Comet',
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'c8313697-2563-47fc-832e-290f4c04b901': 'DiamondHull',
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'4391aaaa-df73-4396-9e33-31e4e4930b27': 'Disco',
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'd1d991f2-e7a0-4cf1-b328-f57e915e6260': 'DotMarker',
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'6a1cf9f9-032c-45ec-9b1d-a6680bee30f7': 'Dots',
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'0d3889f3-3ede-470c-8af4-f44813306126': 'DoubleTaperedFlat',
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'0d3889f3-3ede-470c-8af4-de4813306126': 'DoubleTaperedMarker',
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'd0262945-853c-4481-9cbd-88586bed93cb': 'DuctTape',
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'3ca16e2f-bdcd-4da2-8631-dcef342f40f1': 'DuctTapeSingleSided',
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'f6e85de3-6dcc-4e7f-87fd-cee8c3d25d51': 'Electricity',
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'02ffb866-7fb2-4d15-b761-1012cefb1360': 'Embers',
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'cb92b597-94ca-4255-b017-0e3f42f12f9e': 'Fire',
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'2d35bcf0-e4d8-452c-97b1-3311be063130': 'Flat',
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'55303bc4-c749-4a72-98d9-d23e68e76e18': 'FlatDeprecated',
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'280c0a7a-aad8-416c-a7d2-df63d129ca70': 'FlatSingleSided',
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'cf019139-d41c-4eb0-a1d0-5cf54b0a42f3': 'Highlighter',
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'6a1cf9f9-032c-45ec-9b6e-a6680bee32e9': 'HyperGrid',
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'dce872c2-7b49-4684-b59b-c45387949c5c': 'Hypercolor',
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'e8ef32b1-baa8-460a-9c2c-9cf8506794f5': 'HypercolorSingleSided',
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'2f212815-f4d3-c1a4-681a-feeaf9c6dc37': 'Icing',
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'f5c336cf-5108-4b40-ade9-c687504385ab': 'Ink',
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'c0012095-3ffd-4040-8ee1-fc180d346eaa': 'InkSingleSided',
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'4a76a27a-44d8-4bfe-9a8c-713749a499b0': 'Leaves',
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'ea19de07-d0c0-4484-9198-18489a3c1487': 'LeavesSingleSided',
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'2241cd32-8ba2-48a5-9ee7-2caef7e9ed62': 'Light',
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'4391aaaa-df81-4396-9e33-31e4e4930b27': 'LightWire',
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'd381e0f5-3def-4a0d-8853-31e9200bcbda': 'Lofted',
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'429ed64a-4e97-4466-84d3-145a861ef684': 'Marker',
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'79348357-432d-4746-8e29-0e25c112e3aa': 'MatteHull',
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'b2ffef01-eaaa-4ab5-aa64-95a2c4f5dbc6': 'NeonPulse',
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'f72ec0e7-a844-4e38-82e3-140c44772699': 'OilPaint',
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'c515dad7-4393-4681-81ad-162ef052241b': 'OilPaintSingleSided',
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'f1114e2e-eb8d-4fde-915a-6e653b54e9f5': 'Paper',
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'759f1ebd-20cd-4720-8d41-234e0da63716': 'PaperSingleSided',
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'e0abbc80-0f80-e854-4970-8924a0863dcc': 'Petal',
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'c33714d1-b2f9-412e-bd50-1884c9d46336': 'Plasma',
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'ad1ad437-76e2-450d-a23a-e17f8310b960': 'Rainbow',
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'faaa4d44-fcfb-4177-96be-753ac0421ba3': 'ShinyHull',
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'70d79cca-b159-4f35-990c-f02193947fe8': 'Smoke',
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'd902ed8b-d0d1-476c-a8de-878a79e3a34c': 'Snow',
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'accb32f5-4509-454f-93f8-1df3fd31df1b': 'SoftHighlighter',
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'cf7f0059-7aeb-53a4-2b67-c83d863a9ffa': 'Spikes',
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'8dc4a70c-d558-4efd-a5ed-d4e860f40dc3': 'Splatter',
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'7a1c8107-50c5-4b70-9a39-421576d6617e': 'SplatterSingleSided',
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'0eb4db27-3f82-408d-b5a1-19ebd7d5b711': 'Stars',
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'44bb800a-fbc3-4592-8426-94ecb05ddec3': 'Streamers',
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'0077f88c-d93a-42f3-b59b-b31c50cdb414': 'Taffy',
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'b468c1fb-f254-41ed-8ec9-57030bc5660c': 'TaperedFlat',
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'c8ccb53d-ae13-45ef-8afb-b730d81394eb': 'TaperedFlatSingleSided',
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'd90c6ad8-af0f-4b54-b422-e0f92abe1b3c': 'TaperedMarker',
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'1a26b8c0-8a07-4f8a-9fac-d2ef36e0cad0': 'TaperedMarker_Flat',
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'75b32cf0-fdd6-4d89-a64b-e2a00b247b0f': 'ThickPaint',
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'fdf0326a-c0d1-4fed-b101-9db0ff6d071f': 'ThickPaintSingleSided',
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'4391385a-df73-4396-9e33-31e4e4930b27': 'Toon',
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'a8fea537-da7c-4d4b-817f-24f074725d6d': 'UnlitHull',
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'd229d335-c334-495a-a801-660ac8a87360': 'VelvetInk',
|
||
|
|
'10201aa3-ebc2-42d8-84b7-2e63f6eeb8ab': 'Waveform',
|
||
|
|
'b67c0e81-ce6d-40a8-aeb0-ef036b081aa3': 'WetPaint',
|
||
|
|
'dea67637-cd1a-27e4-c9b1-52f4bbcb84e5': 'WetPaintSingleSided',
|
||
|
|
'5347acf0-a8e2-47b6-8346-30c70719d763': 'WigglyGraphite',
|
||
|
|
'e814fef1-97fd-7194-4a2f-50c2bb918be2': 'WigglyGraphiteSingleSided',
|
||
|
|
'4391385a-cf83-4396-9e33-31e4e4930b27': 'Wire'
|
||
|
|
};
|
||
|
|
|
||
|
|
const common = {
|
||
|
|
|
||
|
|
'colors': {
|
||
|
|
|
||
|
|
'BloomColor': `
|
||
|
|
vec3 BloomColor(vec3 color, float gain) {
|
||
|
|
// Guarantee that there's at least a little bit of all 3 channels.
|
||
|
|
// This makes fully-saturated strokes (which only have 2 non-zero
|
||
|
|
// color channels) eventually clip to white rather than to a secondary.
|
||
|
|
float cmin = length(color.rgb) * .05;
|
||
|
|
color.rgb = max(color.rgb, vec3(cmin, cmin, cmin));
|
||
|
|
// If we try to remove this pow() from .a, it brightens up
|
||
|
|
// pressure-sensitive strokes; looks better as-is.
|
||
|
|
color = pow(color, vec3(2.2));
|
||
|
|
color.rgb *= 2. * exp(gain * 10.);
|
||
|
|
return color;
|
||
|
|
}
|
||
|
|
`,
|
||
|
|
|
||
|
|
'LinearToSrgb': `
|
||
|
|
vec3 LinearToSrgb(vec3 color) {
|
||
|
|
// Approximation http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html
|
||
|
|
vec3 linearColor = color.rgb;
|
||
|
|
vec3 S1 = sqrt(linearColor);
|
||
|
|
vec3 S2 = sqrt(S1);
|
||
|
|
vec3 S3 = sqrt(S2);
|
||
|
|
color.rgb = 0.662002687 * S1 + 0.684122060 * S2 - 0.323583601 * S3 - 0.0225411470 * linearColor;
|
||
|
|
return color;
|
||
|
|
}
|
||
|
|
`,
|
||
|
|
|
||
|
|
'hsv': `
|
||
|
|
// uniform sampler2D lookupTex;
|
||
|
|
vec4 lookup(vec4 textureColor) {
|
||
|
|
return textureColor;
|
||
|
|
}
|
||
|
|
|
||
|
|
vec3 lookup(vec3 textureColor) {
|
||
|
|
return textureColor;
|
||
|
|
}
|
||
|
|
|
||
|
|
vec3 hsv2rgb( vec3 hsv ) {
|
||
|
|
vec3 rgb = clamp( abs(mod(hsv.x*6.0+vec3(0.0,4.0,2.0),6.0)-3.0)-1.0, 0.0, 1.0 );
|
||
|
|
return hsv.z * mix( vec3(1.0), rgb, hsv.y);
|
||
|
|
}
|
||
|
|
|
||
|
|
vec3 rgb2hsv( vec3 rgb ) {
|
||
|
|
vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
|
||
|
|
vec4 p = mix(vec4(rgb.bg, K.wz), vec4(rgb.gb, K.xy), step(rgb.b, rgb.g));
|
||
|
|
vec4 q = mix(vec4(p.xyw, rgb.r), vec4(rgb.r, p.yzx), step(p.x, rgb.r));
|
||
|
|
|
||
|
|
float d = q.x - min(q.w, q.y);
|
||
|
|
float e = 1.0e-10;
|
||
|
|
|
||
|
|
return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
|
||
|
|
}
|
||
|
|
`,
|
||
|
|
|
||
|
|
'SrgbToLinear': `
|
||
|
|
vec3 SrgbToLinear(vec3 color) {
|
||
|
|
// Approximation http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html
|
||
|
|
vec3 sRGB = color.rgb;
|
||
|
|
color.rgb = sRGB * (sRGB * (sRGB * 0.305306011 + 0.682171111) + 0.012522878);
|
||
|
|
return color;
|
||
|
|
}
|
||
|
|
`
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
let shaders = null;
|
||
|
|
|
||
|
|
function getShaders() {
|
||
|
|
|
||
|
|
if ( shaders === null ) {
|
||
|
|
|
||
|
|
const loader = new TextureLoader().setPath( './textures/tiltbrush/' );
|
||
|
|
|
||
|
|
shaders = {
|
||
|
|
'Light': {
|
||
|
|
uniforms: {
|
||
|
|
mainTex: { value: loader.load( 'Light.webp' ) },
|
||
|
|
alphaTest: { value: 0.067 },
|
||
|
|
emission_gain: { value: 0.45 },
|
||
|
|
alpha: { value: 1 },
|
||
|
|
},
|
||
|
|
vertexShader: `
|
||
|
|
precision highp float;
|
||
|
|
precision highp int;
|
||
|
|
|
||
|
|
attribute vec2 uv;
|
||
|
|
attribute vec4 color;
|
||
|
|
attribute vec3 position;
|
||
|
|
|
||
|
|
uniform mat4 modelMatrix;
|
||
|
|
uniform mat4 modelViewMatrix;
|
||
|
|
uniform mat4 projectionMatrix;
|
||
|
|
uniform mat4 viewMatrix;
|
||
|
|
uniform mat3 normalMatrix;
|
||
|
|
uniform vec3 cameraPosition;
|
||
|
|
|
||
|
|
varying vec2 vUv;
|
||
|
|
varying vec3 vColor;
|
||
|
|
|
||
|
|
${ common.colors.LinearToSrgb }
|
||
|
|
${ common.colors.hsv }
|
||
|
|
|
||
|
|
void main() {
|
||
|
|
|
||
|
|
vUv = uv;
|
||
|
|
|
||
|
|
vColor = lookup(color.rgb);
|
||
|
|
|
||
|
|
vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
|
||
|
|
|
||
|
|
gl_Position = projectionMatrix * mvPosition;
|
||
|
|
|
||
|
|
}
|
||
|
|
`,
|
||
|
|
fragmentShader: `
|
||
|
|
precision highp float;
|
||
|
|
precision highp int;
|
||
|
|
|
||
|
|
uniform float emission_gain;
|
||
|
|
|
||
|
|
uniform sampler2D mainTex;
|
||
|
|
uniform float alphaTest;
|
||
|
|
|
||
|
|
varying vec2 vUv;
|
||
|
|
varying vec3 vColor;
|
||
|
|
|
||
|
|
${ common.colors.BloomColor }
|
||
|
|
${ common.colors.SrgbToLinear }
|
||
|
|
|
||
|
|
void main(){
|
||
|
|
vec4 col = texture2D(mainTex, vUv);
|
||
|
|
vec3 color = vColor;
|
||
|
|
color = BloomColor(color, emission_gain);
|
||
|
|
color = color * col.rgb;
|
||
|
|
color = color * col.a;
|
||
|
|
color = SrgbToLinear(color);
|
||
|
|
gl_FragColor = vec4(color, 1.0);
|
||
|
|
}
|
||
|
|
`,
|
||
|
|
side: 2,
|
||
|
|
transparent: true,
|
||
|
|
depthFunc: 2,
|
||
|
|
depthWrite: true,
|
||
|
|
depthTest: false,
|
||
|
|
blending: 5,
|
||
|
|
blendDst: 201,
|
||
|
|
blendDstAlpha: 201,
|
||
|
|
blendEquation: 100,
|
||
|
|
blendEquationAlpha: 100,
|
||
|
|
blendSrc: 201,
|
||
|
|
blendSrcAlpha: 201,
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
return shaders;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function getMaterial( GUID ) {
|
||
|
|
|
||
|
|
const name = BRUSH_LIST_ARRAY[ GUID ];
|
||
|
|
|
||
|
|
switch ( name ) {
|
||
|
|
|
||
|
|
case 'Light':
|
||
|
|
return new RawShaderMaterial( getShaders().Light );
|
||
|
|
|
||
|
|
default:
|
||
|
|
return new MeshBasicMaterial( { vertexColors: true, side: DoubleSide } );
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
export { TiltLoader };
|