playcanvas
Version:
PlayCanvas WebGL game engine
158 lines (155 loc) • 4.53 kB
JavaScript
import { Color } from '../../../core/math/color.js';
import { Vec2 } from '../../../core/math/vec2.js';
import { Vec3 } from '../../../core/math/vec3.js';
import { Texture } from '../../../platform/graphics/texture.js';
import { BoundingBox } from '../../../core/shape/bounding-box.js';
import { StandardMaterial } from '../../../scene/materials/standard-material.js';
import { StandardMaterialValidator } from '../../../scene/materials/standard-material-validator.js';
import { standardMaterialParameterTypes } from '../../../scene/materials/standard-material-parameters.js';
class JsonStandardMaterialParser {
constructor(){
this._validator = null;
}
parse(input) {
const migrated = this.migrate(input);
const validated = this._validate(migrated);
const material = new StandardMaterial();
this.initialize(material, validated);
return material;
}
initialize(material, data) {
if (!data.validated) {
data = this._validate(data);
}
if (data.chunks) {
if (data.chunks && Object.keys(data.chunks).length > 0) {
const dstMap = material.shaderChunks.glsl;
Object.entries(data.chunks).forEach(([key, value])=>dstMap.set(key, value));
}
}
for(const key in data){
const type = standardMaterialParameterTypes[key];
const value = data[key];
if (type === 'vec2') {
material[key] = new Vec2(value[0], value[1]);
} else if (type === 'rgb') {
material[key] = new Color(value[0], value[1], value[2]);
} else if (type === 'texture') {
if (value instanceof Texture) {
material[key] = value;
} else if (!(material[key] instanceof Texture && typeof value === 'number' && value > 0)) {
material[key] = null;
}
} else if (type === 'cubemap') {
if (value instanceof Texture) {
material[key] = value;
} else if (!(material[key] instanceof Texture && typeof value === 'number' && value > 0)) {
material[key] = null;
}
if (key === 'cubeMap' && !value) {
material.prefilteredCubemaps = null;
}
} else if (type === 'boundingbox') {
const center = new Vec3(value.center[0], value.center[1], value.center[2]);
const halfExtents = new Vec3(value.halfExtents[0], value.halfExtents[1], value.halfExtents[2]);
material[key] = new BoundingBox(center, halfExtents);
} else {
material[key] = data[key];
}
}
material.update();
}
migrate(data) {
if (data.shader) delete data.shader;
if (data.mapping_format) {
data.mappingFormat = data.mapping_format;
delete data.mapping_format;
}
let i;
const RENAMED_PROPERTIES = [
[
'bumpMapFactor',
'bumpiness'
],
[
'aoUvSet',
'aoMapUv'
],
[
'aoMapVertexColor',
'aoVertexColor'
],
[
'diffuseMapVertexColor',
'diffuseVertexColor'
],
[
'emissiveMapVertexColor',
'emissiveVertexColor'
],
[
'specularMapVertexColor',
'specularVertexColor'
],
[
'metalnessMapVertexColor',
'metalnessVertexColor'
],
[
'opacityMapVertexColor',
'opacityVertexColor'
],
[
'glossMapVertexColor',
'glossVertexColor'
],
[
'lightMapVertexColor',
'lightVertexColor'
],
[
'specularMapTint',
'specularTint'
],
[
'metalnessMapTint',
'metalnessTint'
],
[
'clearCoatGlossiness',
'clearCoatGloss'
]
];
for(i = 0; i < RENAMED_PROPERTIES.length; i++){
const _old = RENAMED_PROPERTIES[i][0];
const _new = RENAMED_PROPERTIES[i][1];
if (data[_old] !== undefined) {
if (data[_new] === undefined) {
data[_new] = data[_old];
}
delete data[_old];
}
}
const DEPRECATED_PROPERTIES = [
'fresnelFactor',
'shadowSampleType'
];
for(i = 0; i < DEPRECATED_PROPERTIES.length; i++){
const name = DEPRECATED_PROPERTIES[i];
if (data.hasOwnProperty(name)) {
delete data[name];
}
}
return data;
}
_validate(data) {
if (!data.validated) {
if (!this._validator) {
this._validator = new StandardMaterialValidator();
}
this._validator.validate(data);
}
return data;
}
}
export { JsonStandardMaterialParser };