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123 lines
2.4 KiB
123 lines
2.4 KiB
2 years ago
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import { Vector3 } from 'three';
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import Node from '../core/Node.js';
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import UniformNode from '../core/UniformNode.js';
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import { NodeUpdateType } from '../core/constants.js';
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class Object3DNode extends Node {
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static VIEW_MATRIX = 'viewMatrix';
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static NORMAL_MATRIX = 'normalMatrix';
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static WORLD_MATRIX = 'worldMatrix';
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static POSITION = 'position';
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static VIEW_POSITION = 'viewPosition';
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constructor( scope = Object3DNode.VIEW_MATRIX, object3d = null ) {
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super();
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this.scope = scope;
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this.object3d = object3d;
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this.updateType = NodeUpdateType.OBJECT;
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this._uniformNode = new UniformNode( null );
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}
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getNodeType() {
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const scope = this.scope;
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if ( scope === Object3DNode.WORLD_MATRIX || scope === Object3DNode.VIEW_MATRIX ) {
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return 'mat4';
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} else if ( scope === Object3DNode.NORMAL_MATRIX ) {
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return 'mat3';
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} else if ( scope === Object3DNode.POSITION || scope === Object3DNode.VIEW_POSITION ) {
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return 'vec3';
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}
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}
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update( frame ) {
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const object = this.object3d;
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const uniformNode = this._uniformNode;
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const scope = this.scope;
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if ( scope === Object3DNode.VIEW_MATRIX ) {
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uniformNode.value = object.modelViewMatrix;
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} else if ( scope === Object3DNode.NORMAL_MATRIX ) {
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uniformNode.value = object.normalMatrix;
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} else if ( scope === Object3DNode.WORLD_MATRIX ) {
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uniformNode.value = object.matrixWorld;
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} else if ( scope === Object3DNode.POSITION ) {
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uniformNode.value.setFromMatrixPosition( object.matrixWorld );
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} else if ( scope === Object3DNode.VIEW_POSITION ) {
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const camera = frame.camera;
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uniformNode.value = uniformNode.value || new Vector3();
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uniformNode.value.setFromMatrixPosition( object.matrixWorld );
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uniformNode.value.applyMatrix4( camera.matrixWorldInverse );
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}
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}
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generate( builder ) {
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const scope = this.scope;
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if ( scope === Object3DNode.WORLD_MATRIX || scope === Object3DNode.VIEW_MATRIX ) {
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this._uniformNode.nodeType = 'mat4';
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} else if ( scope === Object3DNode.NORMAL_MATRIX ) {
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this._uniformNode.nodeType = 'mat3';
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} else if ( scope === Object3DNode.POSITION || scope === Object3DNode.VIEW_POSITION ) {
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this._uniformNode.nodeType = 'vec3';
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}
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return this._uniformNode.build( builder );
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}
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serialize( data ) {
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super.serialize( data );
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data.scope = this.scope;
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}
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deserialize( data ) {
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super.deserialize( data );
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this.scope = data.scope;
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}
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}
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export default Object3DNode;
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