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https://github.com/jiawanlong/Cesium-Examples.git
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130 lines
2.4 KiB
JavaScript
130 lines
2.4 KiB
JavaScript
let id = 0;
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export default class RenderObject {
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constructor( nodes, geometries, renderer, object, material, scene, camera, lightsNode, renderContext ) {
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this._nodes = nodes;
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this._geometries = geometries;
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this.id = id ++;
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this.renderer = renderer;
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this.object = object;
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this.material = material;
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this.scene = scene;
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this.camera = camera;
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this.lightsNode = lightsNode;
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this.context = renderContext;
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this.geometry = object.geometry;
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this.attributes = null;
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this.pipeline = null;
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this.vertexBuffers = null;
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this._materialVersion = - 1;
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this._materialCacheKey = '';
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this.onDispose = null;
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this.onMaterialDispose = () => {
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this.dispose();
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};
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this.material.addEventListener( 'dispose', this.onMaterialDispose );
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}
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getNodeBuilder() {
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return this._nodes.getForRender( this );
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}
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getBindings() {
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return this.getNodeBuilder().getBindings();
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}
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getIndex() {
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return this._geometries.getIndex( this );
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}
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getChainArray() {
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return [ this.object, this.material, this.context, this.lightsNode ];
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}
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getAttributes() {
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if ( this.attributes !== null ) return this.attributes;
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const nodeAttributes = this.getNodeBuilder().getAttributesArray();
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const geometry = this.geometry;
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const attributes = [];
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const vertexBuffers = new Set();
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for ( const nodeAttribute of nodeAttributes ) {
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const attribute = nodeAttribute.node && nodeAttribute.node.attribute ? nodeAttribute.node.attribute : geometry.getAttribute( nodeAttribute.name );
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attributes.push( attribute );
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const bufferAttribute = attribute.isInterleavedBufferAttribute ? attribute.data : attribute;
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vertexBuffers.add( bufferAttribute );
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}
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this.attributes = attributes;
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this.vertexBuffers = Array.from( vertexBuffers.values() );
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return attributes;
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}
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getVertexBuffers() {
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if ( this.vertexBuffers === null ) this.getAttributes();
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return this.vertexBuffers;
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}
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getCacheKey() {
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const { material, scene, lightsNode } = this;
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if ( material.version !== this._materialVersion ) {
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this._materialVersion = material.version;
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this._materialCacheKey = material.customProgramCacheKey();
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}
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const cacheKey = [];
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cacheKey.push( 'material:' + this._materialCacheKey );
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cacheKey.push( 'nodes:' + this._nodes.getCacheKey( scene, lightsNode ) );
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return '{' + cacheKey.join( ',' ) + '}';
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}
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dispose() {
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this.material.removeEventListener( 'dispose', this.onMaterialDispose );
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this.onDispose();
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}
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}
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