three-stdlib
Version:
stand-alone library of threejs examples
377 lines (356 loc) • 13.7 kB
JavaScript
"use strict";
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
const THREE = require("three");
const fflate = require("fflate");
class TiltLoader extends THREE.Loader {
load(url, onLoad, onProgress, onError) {
const scope = this;
const loader = new THREE.FileLoader(this.manager);
loader.setPath(this.path);
loader.setResponseType("arraybuffer");
loader.setWithCredentials(this.withCredentials);
loader.load(
url,
function(buffer) {
try {
onLoad(scope.parse(buffer));
} catch (e) {
if (onError) {
onError(e);
} else {
console.error(e);
}
scope.manager.itemError(url);
}
},
onProgress,
onError
);
}
parse(buffer) {
const group = new THREE.Group();
const zip = fflate.unzipSync(new Uint8Array(buffer.slice(16)));
const metadata = JSON.parse(fflate.strFromU8(zip["metadata.json"]));
const data = new DataView(zip["data.sketch"].buffer);
const num_strokes = data.getInt32(16, true);
const brushes = {};
let offset = 20;
for (let i = 0; i < num_strokes; i++) {
const brush_index = data.getInt32(offset, true);
const brush_color = [
data.getFloat32(offset + 4, true),
data.getFloat32(offset + 8, true),
data.getFloat32(offset + 12, true),
data.getFloat32(offset + 16, true)
];
const brush_size = data.getFloat32(offset + 20, true);
const stroke_mask = data.getUint32(offset + 24, true);
const controlpoint_mask = data.getUint32(offset + 28, true);
let offset_stroke_mask = 0;
let offset_controlpoint_mask = 0;
for (let j = 0; j < 4; j++) {
const byte = 1 << j;
if ((stroke_mask & byte) > 0)
offset_stroke_mask += 4;
if ((controlpoint_mask & byte) > 0)
offset_controlpoint_mask += 4;
}
offset = offset + 28 + offset_stroke_mask + 4;
const num_control_points = data.getInt32(offset, true);
const positions = new Float32Array(num_control_points * 3);
const quaternions = new Float32Array(num_control_points * 4);
offset = offset + 4;
for (let j = 0, k = 0; j < positions.length; j += 3, k += 4) {
positions[j + 0] = data.getFloat32(offset + 0, true);
positions[j + 1] = data.getFloat32(offset + 4, true);
positions[j + 2] = data.getFloat32(offset + 8, true);
quaternions[k + 0] = data.getFloat32(offset + 12, true);
quaternions[k + 1] = data.getFloat32(offset + 16, true);
quaternions[k + 2] = data.getFloat32(offset + 20, true);
quaternions[k + 3] = data.getFloat32(offset + 24, true);
offset = offset + 28 + offset_controlpoint_mask;
}
if (brush_index in brushes === false) {
brushes[brush_index] = [];
}
brushes[brush_index].push([positions, quaternions, brush_size, brush_color]);
}
for (const brush_index in brushes) {
const geometry = new StrokeGeometry(brushes[brush_index]);
const material = getMaterial(metadata.BrushIndex[brush_index]);
group.add(new THREE.Mesh(geometry, material));
}
return group;
}
}
class StrokeGeometry extends THREE.BufferGeometry {
constructor(strokes) {
super();
const vertices = [];
const colors = [];
const uvs = [];
const position = new THREE.Vector3();
const prevPosition = new THREE.Vector3();
const quaternion = new THREE.Quaternion();
const prevQuaternion = new THREE.Quaternion();
const vector1 = new THREE.Vector3();
const vector2 = new THREE.Vector3();
const vector3 = new THREE.Vector3();
const vector4 = new THREE.Vector3();
for (const k in strokes) {
const stroke = strokes[k];
const positions = stroke[0];
const quaternions = stroke[1];
const size = stroke[2];
const color = stroke[3];
prevPosition.fromArray(positions, 0);
prevQuaternion.fromArray(quaternions, 0);
for (let i = 3, j = 4, l = positions.length; i < l; i += 3, j += 4) {
position.fromArray(positions, i);
quaternion.fromArray(quaternions, j);
vector1.set(-size, 0, 0);
vector1.applyQuaternion(quaternion);
vector1.add(position);
vector2.set(size, 0, 0);
vector2.applyQuaternion(quaternion);
vector2.add(position);
vector3.set(size, 0, 0);
vector3.applyQuaternion(prevQuaternion);
vector3.add(prevPosition);
vector4.set(-size, 0, 0);
vector4.applyQuaternion(prevQuaternion);
vector4.add(prevPosition);
vertices.push(vector1.x, vector1.y, -vector1.z);
vertices.push(vector2.x, vector2.y, -vector2.z);
vertices.push(vector4.x, vector4.y, -vector4.z);
vertices.push(vector2.x, vector2.y, -vector2.z);
vertices.push(vector3.x, vector3.y, -vector3.z);
vertices.push(vector4.x, vector4.y, -vector4.z);
prevPosition.copy(position);
prevQuaternion.copy(quaternion);
colors.push(...color);
colors.push(...color);
colors.push(...color);
colors.push(...color);
colors.push(...color);
colors.push(...color);
const p1 = i / l;
const p2 = (i - 3) / l;
uvs.push(p1, 0);
uvs.push(p1, 1);
uvs.push(p2, 0);
uvs.push(p1, 1);
uvs.push(p2, 1);
uvs.push(p2, 0);
}
}
this.setAttribute("position", new THREE.BufferAttribute(new Float32Array(vertices), 3));
this.setAttribute("color", new THREE.BufferAttribute(new Float32Array(colors), 4));
this.setAttribute("uv", new THREE.BufferAttribute(new Float32Array(uvs), 2));
}
}
const BRUSH_LIST_ARRAY = {
"89d104cd-d012-426b-b5b3-bbaee63ac43c": "Bubbles",
"700f3aa8-9a7c-2384-8b8a-ea028905dd8c": "CelVinyl",
"0f0ff7b2-a677-45eb-a7d6-0cd7206f4816": "ChromaticWave",
"1161af82-50cf-47db-9706-0c3576d43c43": "CoarseBristles",
"79168f10-6961-464a-8be1-57ed364c5600": "CoarseBristlesSingleSided",
"1caa6d7d-f015-3f54-3a4b-8b5354d39f81": "Comet",
"c8313697-2563-47fc-832e-290f4c04b901": "DiamondHull",
"4391aaaa-df73-4396-9e33-31e4e4930b27": "Disco",
"d1d991f2-e7a0-4cf1-b328-f57e915e6260": "DotMarker",
"6a1cf9f9-032c-45ec-9b1d-a6680bee30f7": "Dots",
"0d3889f3-3ede-470c-8af4-f44813306126": "DoubleTaperedFlat",
"0d3889f3-3ede-470c-8af4-de4813306126": "DoubleTaperedMarker",
"d0262945-853c-4481-9cbd-88586bed93cb": "DuctTape",
"3ca16e2f-bdcd-4da2-8631-dcef342f40f1": "DuctTapeSingleSided",
"f6e85de3-6dcc-4e7f-87fd-cee8c3d25d51": "Electricity",
"02ffb866-7fb2-4d15-b761-1012cefb1360": "Embers",
"cb92b597-94ca-4255-b017-0e3f42f12f9e": "Fire",
"2d35bcf0-e4d8-452c-97b1-3311be063130": "Flat",
"55303bc4-c749-4a72-98d9-d23e68e76e18": "FlatDeprecated",
"280c0a7a-aad8-416c-a7d2-df63d129ca70": "FlatSingleSided",
"cf019139-d41c-4eb0-a1d0-5cf54b0a42f3": "Highlighter",
"6a1cf9f9-032c-45ec-9b6e-a6680bee32e9": "HyperGrid",
"dce872c2-7b49-4684-b59b-c45387949c5c": "Hypercolor",
"e8ef32b1-baa8-460a-9c2c-9cf8506794f5": "HypercolorSingleSided",
"2f212815-f4d3-c1a4-681a-feeaf9c6dc37": "Icing",
"f5c336cf-5108-4b40-ade9-c687504385ab": "Ink",
"c0012095-3ffd-4040-8ee1-fc180d346eaa": "InkSingleSided",
"4a76a27a-44d8-4bfe-9a8c-713749a499b0": "Leaves",
"ea19de07-d0c0-4484-9198-18489a3c1487": "LeavesSingleSided",
"2241cd32-8ba2-48a5-9ee7-2caef7e9ed62": "Light",
"4391aaaa-df81-4396-9e33-31e4e4930b27": "LightWire",
"d381e0f5-3def-4a0d-8853-31e9200bcbda": "Lofted",
"429ed64a-4e97-4466-84d3-145a861ef684": "Marker",
"79348357-432d-4746-8e29-0e25c112e3aa": "MatteHull",
"b2ffef01-eaaa-4ab5-aa64-95a2c4f5dbc6": "NeonPulse",
"f72ec0e7-a844-4e38-82e3-140c44772699": "OilPaint",
"c515dad7-4393-4681-81ad-162ef052241b": "OilPaintSingleSided",
"f1114e2e-eb8d-4fde-915a-6e653b54e9f5": "Paper",
"759f1ebd-20cd-4720-8d41-234e0da63716": "PaperSingleSided",
"e0abbc80-0f80-e854-4970-8924a0863dcc": "Petal",
"c33714d1-b2f9-412e-bd50-1884c9d46336": "Plasma",
"ad1ad437-76e2-450d-a23a-e17f8310b960": "Rainbow",
"faaa4d44-fcfb-4177-96be-753ac0421ba3": "ShinyHull",
"70d79cca-b159-4f35-990c-f02193947fe8": "Smoke",
"d902ed8b-d0d1-476c-a8de-878a79e3a34c": "Snow",
"accb32f5-4509-454f-93f8-1df3fd31df1b": "SoftHighlighter",
"cf7f0059-7aeb-53a4-2b67-c83d863a9ffa": "Spikes",
"8dc4a70c-d558-4efd-a5ed-d4e860f40dc3": "Splatter",
"7a1c8107-50c5-4b70-9a39-421576d6617e": "SplatterSingleSided",
"0eb4db27-3f82-408d-b5a1-19ebd7d5b711": "Stars",
"44bb800a-fbc3-4592-8426-94ecb05ddec3": "Streamers",
"0077f88c-d93a-42f3-b59b-b31c50cdb414": "Taffy",
"b468c1fb-f254-41ed-8ec9-57030bc5660c": "TaperedFlat",
"c8ccb53d-ae13-45ef-8afb-b730d81394eb": "TaperedFlatSingleSided",
"d90c6ad8-af0f-4b54-b422-e0f92abe1b3c": "TaperedMarker",
"1a26b8c0-8a07-4f8a-9fac-d2ef36e0cad0": "TaperedMarker_Flat",
"75b32cf0-fdd6-4d89-a64b-e2a00b247b0f": "ThickPaint",
"fdf0326a-c0d1-4fed-b101-9db0ff6d071f": "ThickPaintSingleSided",
"4391385a-df73-4396-9e33-31e4e4930b27": "Toon",
"a8fea537-da7c-4d4b-817f-24f074725d6d": "UnlitHull",
"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;
}
`
}
};
const shaders = () => ({
Light: {
uniforms: {
mainTex: {
value: new THREE.TextureLoader().setPath("./textures/tiltbrush/").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
}
});
function getMaterial(GUID) {
const name = BRUSH_LIST_ARRAY[GUID];
switch (name) {
case "Light":
return new THREE.RawShaderMaterial(shaders().Light);
default:
return new THREE.MeshBasicMaterial({ vertexColors: true, side: THREE.DoubleSide });
}
}
exports.TiltLoader = TiltLoader;
//# sourceMappingURL=TiltLoader.cjs.map