649 lines
22 KiB
JavaScript
649 lines
22 KiB
JavaScript
"use strict";
|
|
Object.defineProperty(exports, Symbol.toStringTag, { value: "Module" });
|
|
const THREE = require("three");
|
|
const IFFParser = require("./lwo/IFFParser.cjs");
|
|
const uv1 = require("../_polyfill/uv1.cjs");
|
|
let _lwoTree;
|
|
class LWOLoader extends THREE.Loader {
|
|
constructor(manager, parameters = {}) {
|
|
super(manager);
|
|
this.resourcePath = parameters.resourcePath !== void 0 ? parameters.resourcePath : "";
|
|
}
|
|
load(url, onLoad, onProgress, onError) {
|
|
const scope = this;
|
|
const path = scope.path === "" ? extractParentUrl(url, "Objects") : scope.path;
|
|
const modelName = url.split(path).pop().split(".")[0];
|
|
const loader = new THREE.FileLoader(this.manager);
|
|
loader.setPath(scope.path);
|
|
loader.setResponseType("arraybuffer");
|
|
loader.load(
|
|
url,
|
|
function(buffer) {
|
|
try {
|
|
onLoad(scope.parse(buffer, path, modelName));
|
|
} catch (e) {
|
|
if (onError) {
|
|
onError(e);
|
|
} else {
|
|
console.error(e);
|
|
}
|
|
scope.manager.itemError(url);
|
|
}
|
|
},
|
|
onProgress,
|
|
onError
|
|
);
|
|
}
|
|
parse(iffBuffer, path, modelName) {
|
|
_lwoTree = new IFFParser.IFFParser().parse(iffBuffer);
|
|
const textureLoader = new THREE.TextureLoader(this.manager).setPath(this.resourcePath || path).setCrossOrigin(this.crossOrigin);
|
|
return new LWOTreeParser(textureLoader).parse(modelName);
|
|
}
|
|
}
|
|
class LWOTreeParser {
|
|
constructor(textureLoader) {
|
|
this.textureLoader = textureLoader;
|
|
}
|
|
parse(modelName) {
|
|
this.materials = new MaterialParser(this.textureLoader).parse();
|
|
this.defaultLayerName = modelName;
|
|
this.meshes = this.parseLayers();
|
|
return {
|
|
materials: this.materials,
|
|
meshes: this.meshes
|
|
};
|
|
}
|
|
parseLayers() {
|
|
const meshes = [];
|
|
const finalMeshes = [];
|
|
const geometryParser = new GeometryParser();
|
|
const scope = this;
|
|
_lwoTree.layers.forEach(function(layer) {
|
|
const geometry = geometryParser.parse(layer.geometry, layer);
|
|
const mesh = scope.parseMesh(geometry, layer);
|
|
meshes[layer.number] = mesh;
|
|
if (layer.parent === -1)
|
|
finalMeshes.push(mesh);
|
|
else
|
|
meshes[layer.parent].add(mesh);
|
|
});
|
|
this.applyPivots(finalMeshes);
|
|
return finalMeshes;
|
|
}
|
|
parseMesh(geometry, layer) {
|
|
let mesh;
|
|
const materials = this.getMaterials(geometry.userData.matNames, layer.geometry.type);
|
|
if (uv1.UV1 === "uv2")
|
|
this.duplicateUVs(geometry, materials);
|
|
if (layer.geometry.type === "points")
|
|
mesh = new THREE.Points(geometry, materials);
|
|
else if (layer.geometry.type === "lines")
|
|
mesh = new THREE.LineSegments(geometry, materials);
|
|
else
|
|
mesh = new THREE.Mesh(geometry, materials);
|
|
if (layer.name)
|
|
mesh.name = layer.name;
|
|
else
|
|
mesh.name = this.defaultLayerName + "_layer_" + layer.number;
|
|
mesh.userData.pivot = layer.pivot;
|
|
return mesh;
|
|
}
|
|
// TODO: may need to be reversed in z to convert LWO to three.js coordinates
|
|
applyPivots(meshes) {
|
|
meshes.forEach(function(mesh) {
|
|
mesh.traverse(function(child) {
|
|
const pivot = child.userData.pivot;
|
|
child.position.x += pivot[0];
|
|
child.position.y += pivot[1];
|
|
child.position.z += pivot[2];
|
|
if (child.parent) {
|
|
const parentPivot = child.parent.userData.pivot;
|
|
child.position.x -= parentPivot[0];
|
|
child.position.y -= parentPivot[1];
|
|
child.position.z -= parentPivot[2];
|
|
}
|
|
});
|
|
});
|
|
}
|
|
getMaterials(namesArray, type) {
|
|
const materials = [];
|
|
const scope = this;
|
|
namesArray.forEach(function(name, i) {
|
|
materials[i] = scope.getMaterialByName(name);
|
|
});
|
|
if (type === "points" || type === "lines") {
|
|
materials.forEach(function(mat, i) {
|
|
const spec = {
|
|
color: mat.color
|
|
};
|
|
if (type === "points") {
|
|
spec.size = 0.1;
|
|
spec.map = mat.map;
|
|
spec.morphTargets = mat.morphTargets;
|
|
materials[i] = new THREE.PointsMaterial(spec);
|
|
} else if (type === "lines") {
|
|
materials[i] = new THREE.LineBasicMaterial(spec);
|
|
}
|
|
});
|
|
}
|
|
const filtered = materials.filter(Boolean);
|
|
if (filtered.length === 1)
|
|
return filtered[0];
|
|
return materials;
|
|
}
|
|
getMaterialByName(name) {
|
|
return this.materials.filter(function(m) {
|
|
return m.name === name;
|
|
})[0];
|
|
}
|
|
// If the material has an aoMap, duplicate UVs
|
|
duplicateUVs(geometry, materials) {
|
|
let duplicateUVs = false;
|
|
if (!Array.isArray(materials)) {
|
|
if (materials.aoMap)
|
|
duplicateUVs = true;
|
|
} else {
|
|
materials.forEach(function(material) {
|
|
if (material.aoMap)
|
|
duplicateUVs = true;
|
|
});
|
|
}
|
|
if (!duplicateUVs)
|
|
return;
|
|
geometry.setAttribute("uv2", new THREE.BufferAttribute(geometry.attributes.uv.array, 2));
|
|
}
|
|
}
|
|
class MaterialParser {
|
|
constructor(textureLoader) {
|
|
this.textureLoader = textureLoader;
|
|
}
|
|
parse() {
|
|
const materials = [];
|
|
this.textures = {};
|
|
for (const name in _lwoTree.materials) {
|
|
if (_lwoTree.format === "LWO3") {
|
|
materials.push(this.parseMaterial(_lwoTree.materials[name], name, _lwoTree.textures));
|
|
} else if (_lwoTree.format === "LWO2") {
|
|
materials.push(this.parseMaterialLwo2(_lwoTree.materials[name], name, _lwoTree.textures));
|
|
}
|
|
}
|
|
return materials;
|
|
}
|
|
parseMaterial(materialData, name, textures) {
|
|
let params = {
|
|
name,
|
|
side: this.getSide(materialData.attributes),
|
|
flatShading: this.getSmooth(materialData.attributes)
|
|
};
|
|
const connections = this.parseConnections(materialData.connections, materialData.nodes);
|
|
const maps = this.parseTextureNodes(connections.maps);
|
|
this.parseAttributeImageMaps(connections.attributes, textures, maps, materialData.maps);
|
|
const attributes = this.parseAttributes(connections.attributes, maps);
|
|
this.parseEnvMap(connections, maps, attributes);
|
|
params = Object.assign(maps, params);
|
|
params = Object.assign(params, attributes);
|
|
const materialType = this.getMaterialType(connections.attributes);
|
|
return new materialType(params);
|
|
}
|
|
parseMaterialLwo2(materialData, name) {
|
|
let params = {
|
|
name,
|
|
side: this.getSide(materialData.attributes),
|
|
flatShading: this.getSmooth(materialData.attributes)
|
|
};
|
|
const attributes = this.parseAttributes(materialData.attributes, {});
|
|
params = Object.assign(params, attributes);
|
|
return new THREE.MeshPhongMaterial(params);
|
|
}
|
|
// Note: converting from left to right handed coords by switching x -> -x in vertices, and
|
|
// then switching mat FrontSide -> BackSide
|
|
// NB: this means that FrontSide and BackSide have been switched!
|
|
getSide(attributes) {
|
|
if (!attributes.side)
|
|
return THREE.BackSide;
|
|
switch (attributes.side) {
|
|
case 0:
|
|
case 1:
|
|
return THREE.BackSide;
|
|
case 2:
|
|
return THREE.FrontSide;
|
|
case 3:
|
|
return THREE.DoubleSide;
|
|
}
|
|
}
|
|
getSmooth(attributes) {
|
|
if (!attributes.smooth)
|
|
return true;
|
|
return !attributes.smooth;
|
|
}
|
|
parseConnections(connections, nodes) {
|
|
const materialConnections = {
|
|
maps: {}
|
|
};
|
|
const inputName = connections.inputName;
|
|
const inputNodeName = connections.inputNodeName;
|
|
const nodeName = connections.nodeName;
|
|
const scope = this;
|
|
inputName.forEach(function(name, index) {
|
|
if (name === "Material") {
|
|
const matNode = scope.getNodeByRefName(inputNodeName[index], nodes);
|
|
materialConnections.attributes = matNode.attributes;
|
|
materialConnections.envMap = matNode.fileName;
|
|
materialConnections.name = inputNodeName[index];
|
|
}
|
|
});
|
|
nodeName.forEach(function(name, index) {
|
|
if (name === materialConnections.name) {
|
|
materialConnections.maps[inputName[index]] = scope.getNodeByRefName(inputNodeName[index], nodes);
|
|
}
|
|
});
|
|
return materialConnections;
|
|
}
|
|
getNodeByRefName(refName, nodes) {
|
|
for (const name in nodes) {
|
|
if (nodes[name].refName === refName)
|
|
return nodes[name];
|
|
}
|
|
}
|
|
parseTextureNodes(textureNodes) {
|
|
const maps = {};
|
|
for (const name in textureNodes) {
|
|
const node = textureNodes[name];
|
|
const path = node.fileName;
|
|
if (!path)
|
|
return;
|
|
const texture = this.loadTexture(path);
|
|
if (node.widthWrappingMode !== void 0)
|
|
texture.wrapS = this.getWrappingType(node.widthWrappingMode);
|
|
if (node.heightWrappingMode !== void 0)
|
|
texture.wrapT = this.getWrappingType(node.heightWrappingMode);
|
|
switch (name) {
|
|
case "Color":
|
|
maps.map = texture;
|
|
break;
|
|
case "Roughness":
|
|
maps.roughnessMap = texture;
|
|
maps.roughness = 0.5;
|
|
break;
|
|
case "Specular":
|
|
maps.specularMap = texture;
|
|
maps.specular = 16777215;
|
|
break;
|
|
case "Luminous":
|
|
maps.emissiveMap = texture;
|
|
maps.emissive = 8421504;
|
|
break;
|
|
case "Luminous Color":
|
|
maps.emissive = 8421504;
|
|
break;
|
|
case "Metallic":
|
|
maps.metalnessMap = texture;
|
|
maps.metalness = 0.5;
|
|
break;
|
|
case "Transparency":
|
|
case "Alpha":
|
|
maps.alphaMap = texture;
|
|
maps.transparent = true;
|
|
break;
|
|
case "Normal":
|
|
maps.normalMap = texture;
|
|
if (node.amplitude !== void 0)
|
|
maps.normalScale = new THREE.Vector2(node.amplitude, node.amplitude);
|
|
break;
|
|
case "Bump":
|
|
maps.bumpMap = texture;
|
|
break;
|
|
}
|
|
}
|
|
if (maps.roughnessMap && maps.specularMap)
|
|
delete maps.specularMap;
|
|
return maps;
|
|
}
|
|
// maps can also be defined on individual material attributes, parse those here
|
|
// This occurs on Standard (Phong) surfaces
|
|
parseAttributeImageMaps(attributes, textures, maps) {
|
|
for (const name in attributes) {
|
|
const attribute = attributes[name];
|
|
if (attribute.maps) {
|
|
const mapData = attribute.maps[0];
|
|
const path = this.getTexturePathByIndex(mapData.imageIndex, textures);
|
|
if (!path)
|
|
return;
|
|
const texture = this.loadTexture(path);
|
|
if (mapData.wrap !== void 0)
|
|
texture.wrapS = this.getWrappingType(mapData.wrap.w);
|
|
if (mapData.wrap !== void 0)
|
|
texture.wrapT = this.getWrappingType(mapData.wrap.h);
|
|
switch (name) {
|
|
case "Color":
|
|
maps.map = texture;
|
|
break;
|
|
case "Diffuse":
|
|
maps.aoMap = texture;
|
|
break;
|
|
case "Roughness":
|
|
maps.roughnessMap = texture;
|
|
maps.roughness = 1;
|
|
break;
|
|
case "Specular":
|
|
maps.specularMap = texture;
|
|
maps.specular = 16777215;
|
|
break;
|
|
case "Luminosity":
|
|
maps.emissiveMap = texture;
|
|
maps.emissive = 8421504;
|
|
break;
|
|
case "Metallic":
|
|
maps.metalnessMap = texture;
|
|
maps.metalness = 1;
|
|
break;
|
|
case "Transparency":
|
|
case "Alpha":
|
|
maps.alphaMap = texture;
|
|
maps.transparent = true;
|
|
break;
|
|
case "Normal":
|
|
maps.normalMap = texture;
|
|
break;
|
|
case "Bump":
|
|
maps.bumpMap = texture;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
parseAttributes(attributes, maps) {
|
|
const params = {};
|
|
if (attributes.Color && !maps.map) {
|
|
params.color = new THREE.Color().fromArray(attributes.Color.value);
|
|
} else {
|
|
params.color = new THREE.Color();
|
|
}
|
|
if (attributes.Transparency && attributes.Transparency.value !== 0) {
|
|
params.opacity = 1 - attributes.Transparency.value;
|
|
params.transparent = true;
|
|
}
|
|
if (attributes["Bump Height"])
|
|
params.bumpScale = attributes["Bump Height"].value * 0.1;
|
|
if (attributes["Refraction Index"])
|
|
params.refractionRatio = 1 / attributes["Refraction Index"].value;
|
|
this.parsePhysicalAttributes(params, attributes, maps);
|
|
this.parseStandardAttributes(params, attributes, maps);
|
|
this.parsePhongAttributes(params, attributes, maps);
|
|
return params;
|
|
}
|
|
parsePhysicalAttributes(params, attributes) {
|
|
if (attributes.Clearcoat && attributes.Clearcoat.value > 0) {
|
|
params.clearcoat = attributes.Clearcoat.value;
|
|
if (attributes["Clearcoat Gloss"]) {
|
|
params.clearcoatRoughness = 0.5 * (1 - attributes["Clearcoat Gloss"].value);
|
|
}
|
|
}
|
|
}
|
|
parseStandardAttributes(params, attributes, maps) {
|
|
if (attributes.Luminous) {
|
|
params.emissiveIntensity = attributes.Luminous.value;
|
|
if (attributes["Luminous Color"] && !maps.emissive) {
|
|
params.emissive = new THREE.Color().fromArray(attributes["Luminous Color"].value);
|
|
} else {
|
|
params.emissive = new THREE.Color(8421504);
|
|
}
|
|
}
|
|
if (attributes.Roughness && !maps.roughnessMap)
|
|
params.roughness = attributes.Roughness.value;
|
|
if (attributes.Metallic && !maps.metalnessMap)
|
|
params.metalness = attributes.Metallic.value;
|
|
}
|
|
parsePhongAttributes(params, attributes, maps) {
|
|
if (attributes.Diffuse)
|
|
params.color.multiplyScalar(attributes.Diffuse.value);
|
|
if (attributes.Reflection) {
|
|
params.reflectivity = attributes.Reflection.value;
|
|
params.combine = THREE.AddOperation;
|
|
}
|
|
if (attributes.Luminosity) {
|
|
params.emissiveIntensity = attributes.Luminosity.value;
|
|
if (!maps.emissiveMap && !maps.map) {
|
|
params.emissive = params.color;
|
|
} else {
|
|
params.emissive = new THREE.Color(8421504);
|
|
}
|
|
}
|
|
if (!attributes.Roughness && attributes.Specular && !maps.specularMap) {
|
|
if (attributes["Color Highlight"]) {
|
|
params.specular = new THREE.Color().setScalar(attributes.Specular.value).lerp(params.color.clone().multiplyScalar(attributes.Specular.value), attributes["Color Highlight"].value);
|
|
} else {
|
|
params.specular = new THREE.Color().setScalar(attributes.Specular.value);
|
|
}
|
|
}
|
|
if (params.specular && attributes.Glossiness) {
|
|
params.shininess = 7 + Math.pow(2, attributes.Glossiness.value * 12 + 2);
|
|
}
|
|
}
|
|
parseEnvMap(connections, maps, attributes) {
|
|
if (connections.envMap) {
|
|
const envMap = this.loadTexture(connections.envMap);
|
|
if (attributes.transparent && attributes.opacity < 0.999) {
|
|
envMap.mapping = THREE.EquirectangularRefractionMapping;
|
|
if (attributes.reflectivity !== void 0) {
|
|
delete attributes.reflectivity;
|
|
delete attributes.combine;
|
|
}
|
|
if (attributes.metalness !== void 0) {
|
|
delete attributes.metalness;
|
|
}
|
|
} else {
|
|
envMap.mapping = THREE.EquirectangularReflectionMapping;
|
|
}
|
|
maps.envMap = envMap;
|
|
}
|
|
}
|
|
// get texture defined at top level by its index
|
|
getTexturePathByIndex(index) {
|
|
let fileName = "";
|
|
if (!_lwoTree.textures)
|
|
return fileName;
|
|
_lwoTree.textures.forEach(function(texture) {
|
|
if (texture.index === index)
|
|
fileName = texture.fileName;
|
|
});
|
|
return fileName;
|
|
}
|
|
loadTexture(path) {
|
|
if (!path)
|
|
return null;
|
|
const texture = this.textureLoader.load(path, void 0, void 0, function() {
|
|
console.warn(
|
|
"LWOLoader: non-standard resource hierarchy. Use `resourcePath` parameter to specify root content directory."
|
|
);
|
|
});
|
|
return texture;
|
|
}
|
|
// 0 = Reset, 1 = Repeat, 2 = Mirror, 3 = Edge
|
|
getWrappingType(num) {
|
|
switch (num) {
|
|
case 0:
|
|
console.warn('LWOLoader: "Reset" texture wrapping type is not supported in three.js');
|
|
return THREE.ClampToEdgeWrapping;
|
|
case 1:
|
|
return THREE.RepeatWrapping;
|
|
case 2:
|
|
return THREE.MirroredRepeatWrapping;
|
|
case 3:
|
|
return THREE.ClampToEdgeWrapping;
|
|
}
|
|
}
|
|
getMaterialType(nodeData) {
|
|
if (nodeData.Clearcoat && nodeData.Clearcoat.value > 0)
|
|
return THREE.MeshPhysicalMaterial;
|
|
if (nodeData.Roughness)
|
|
return THREE.MeshStandardMaterial;
|
|
return THREE.MeshPhongMaterial;
|
|
}
|
|
}
|
|
class GeometryParser {
|
|
parse(geoData, layer) {
|
|
const geometry = new THREE.BufferGeometry();
|
|
geometry.setAttribute("position", new THREE.Float32BufferAttribute(geoData.points, 3));
|
|
const indices = this.splitIndices(geoData.vertexIndices, geoData.polygonDimensions);
|
|
geometry.setIndex(indices);
|
|
this.parseGroups(geometry, geoData);
|
|
geometry.computeVertexNormals();
|
|
this.parseUVs(geometry, layer, indices);
|
|
this.parseMorphTargets(geometry, layer, indices);
|
|
geometry.translate(-layer.pivot[0], -layer.pivot[1], -layer.pivot[2]);
|
|
return geometry;
|
|
}
|
|
// split quads into tris
|
|
splitIndices(indices, polygonDimensions) {
|
|
const remappedIndices = [];
|
|
let i = 0;
|
|
polygonDimensions.forEach(function(dim) {
|
|
if (dim < 4) {
|
|
for (let k = 0; k < dim; k++)
|
|
remappedIndices.push(indices[i + k]);
|
|
} else if (dim === 4) {
|
|
remappedIndices.push(
|
|
indices[i],
|
|
indices[i + 1],
|
|
indices[i + 2],
|
|
indices[i],
|
|
indices[i + 2],
|
|
indices[i + 3]
|
|
);
|
|
} else if (dim > 4) {
|
|
for (let k = 1; k < dim - 1; k++) {
|
|
remappedIndices.push(indices[i], indices[i + k], indices[i + k + 1]);
|
|
}
|
|
console.warn("LWOLoader: polygons with greater than 4 sides are not supported");
|
|
}
|
|
i += dim;
|
|
});
|
|
return remappedIndices;
|
|
}
|
|
// NOTE: currently ignoring poly indices and assuming that they are intelligently ordered
|
|
parseGroups(geometry, geoData) {
|
|
const tags = _lwoTree.tags;
|
|
const matNames = [];
|
|
let elemSize = 3;
|
|
if (geoData.type === "lines")
|
|
elemSize = 2;
|
|
if (geoData.type === "points")
|
|
elemSize = 1;
|
|
const remappedIndices = this.splitMaterialIndices(geoData.polygonDimensions, geoData.materialIndices);
|
|
let indexNum = 0;
|
|
const indexPairs = {};
|
|
let prevMaterialIndex;
|
|
let materialIndex;
|
|
let prevStart = 0;
|
|
let currentCount = 0;
|
|
for (let i = 0; i < remappedIndices.length; i += 2) {
|
|
materialIndex = remappedIndices[i + 1];
|
|
if (i === 0)
|
|
matNames[indexNum] = tags[materialIndex];
|
|
if (prevMaterialIndex === void 0)
|
|
prevMaterialIndex = materialIndex;
|
|
if (materialIndex !== prevMaterialIndex) {
|
|
let currentIndex;
|
|
if (indexPairs[tags[prevMaterialIndex]]) {
|
|
currentIndex = indexPairs[tags[prevMaterialIndex]];
|
|
} else {
|
|
currentIndex = indexNum;
|
|
indexPairs[tags[prevMaterialIndex]] = indexNum;
|
|
matNames[indexNum] = tags[prevMaterialIndex];
|
|
indexNum++;
|
|
}
|
|
geometry.addGroup(prevStart, currentCount, currentIndex);
|
|
prevStart += currentCount;
|
|
prevMaterialIndex = materialIndex;
|
|
currentCount = 0;
|
|
}
|
|
currentCount += elemSize;
|
|
}
|
|
if (geometry.groups.length > 0) {
|
|
let currentIndex;
|
|
if (indexPairs[tags[materialIndex]]) {
|
|
currentIndex = indexPairs[tags[materialIndex]];
|
|
} else {
|
|
currentIndex = indexNum;
|
|
indexPairs[tags[materialIndex]] = indexNum;
|
|
matNames[indexNum] = tags[materialIndex];
|
|
}
|
|
geometry.addGroup(prevStart, currentCount, currentIndex);
|
|
}
|
|
geometry.userData.matNames = matNames;
|
|
}
|
|
splitMaterialIndices(polygonDimensions, indices) {
|
|
const remappedIndices = [];
|
|
polygonDimensions.forEach(function(dim, i) {
|
|
if (dim <= 3) {
|
|
remappedIndices.push(indices[i * 2], indices[i * 2 + 1]);
|
|
} else if (dim === 4) {
|
|
remappedIndices.push(indices[i * 2], indices[i * 2 + 1], indices[i * 2], indices[i * 2 + 1]);
|
|
} else {
|
|
for (let k = 0; k < dim - 2; k++) {
|
|
remappedIndices.push(indices[i * 2], indices[i * 2 + 1]);
|
|
}
|
|
}
|
|
});
|
|
return remappedIndices;
|
|
}
|
|
// UV maps:
|
|
// 1: are defined via index into an array of points, not into a geometry
|
|
// - the geometry is also defined by an index into this array, but the indexes may not match
|
|
// 2: there can be any number of UV maps for a single geometry. Here these are combined,
|
|
// with preference given to the first map encountered
|
|
// 3: UV maps can be partial - that is, defined for only a part of the geometry
|
|
// 4: UV maps can be VMAP or VMAD (discontinuous, to allow for seams). In practice, most
|
|
// UV maps are defined as partially VMAP and partially VMAD
|
|
// VMADs are currently not supported
|
|
parseUVs(geometry, layer) {
|
|
const remappedUVs = Array.from(Array(geometry.attributes.position.count * 2), function() {
|
|
return 0;
|
|
});
|
|
for (const name in layer.uvs) {
|
|
const uvs = layer.uvs[name].uvs;
|
|
const uvIndices = layer.uvs[name].uvIndices;
|
|
uvIndices.forEach(function(i, j) {
|
|
remappedUVs[i * 2] = uvs[j * 2];
|
|
remappedUVs[i * 2 + 1] = uvs[j * 2 + 1];
|
|
});
|
|
}
|
|
geometry.setAttribute("uv", new THREE.Float32BufferAttribute(remappedUVs, 2));
|
|
}
|
|
parseMorphTargets(geometry, layer) {
|
|
let num = 0;
|
|
for (const name in layer.morphTargets) {
|
|
const remappedPoints = geometry.attributes.position.array.slice();
|
|
if (!geometry.morphAttributes.position)
|
|
geometry.morphAttributes.position = [];
|
|
const morphPoints = layer.morphTargets[name].points;
|
|
const morphIndices = layer.morphTargets[name].indices;
|
|
const type = layer.morphTargets[name].type;
|
|
morphIndices.forEach(function(i, j) {
|
|
if (type === "relative") {
|
|
remappedPoints[i * 3] += morphPoints[j * 3];
|
|
remappedPoints[i * 3 + 1] += morphPoints[j * 3 + 1];
|
|
remappedPoints[i * 3 + 2] += morphPoints[j * 3 + 2];
|
|
} else {
|
|
remappedPoints[i * 3] = morphPoints[j * 3];
|
|
remappedPoints[i * 3 + 1] = morphPoints[j * 3 + 1];
|
|
remappedPoints[i * 3 + 2] = morphPoints[j * 3 + 2];
|
|
}
|
|
});
|
|
geometry.morphAttributes.position[num] = new THREE.Float32BufferAttribute(remappedPoints, 3);
|
|
geometry.morphAttributes.position[num].name = name;
|
|
num++;
|
|
}
|
|
geometry.morphTargetsRelative = false;
|
|
}
|
|
}
|
|
function extractParentUrl(url, dir) {
|
|
const index = url.indexOf(dir);
|
|
if (index === -1)
|
|
return "./";
|
|
return url.substr(0, index);
|
|
}
|
|
exports.LWOLoader = LWOLoader;
|
|
//# sourceMappingURL=LWOLoader.cjs.map
|