three
Version:
JavaScript 3D library
69 lines (36 loc) • 1.05 kB
JavaScript
import Object3DNode from './Object3DNode.js';
import Matrix4Node from '../inputs/Matrix4Node.js';
class CameraNode extends Object3DNode {
static PROJECTION_MATRIX = 'projectionMatrix';
constructor( scope = CameraNode.POSITION ) {
super( scope );
this._inputNode = null;
}
getNodeType( builder ) {
const scope = this.scope;
if ( scope === CameraNode.PROJECTION_MATRIX ) {
return 'mat4';
}
return super.getNodeType( builder );
}
update( frame ) {
const camera = frame.camera;
const inputNode = this._inputNode;
const scope = this.scope;
if ( scope === CameraNode.PROJECTION_MATRIX ) {
inputNode.value = camera.projectionMatrix;
} else if ( scope === CameraNode.VIEW_MATRIX ) {
inputNode.value = camera.matrixWorldInverse;
} else {
super.update( frame );
}
}
generate( builder ) {
const scope = this.scope;
if ( scope === CameraNode.PROJECTION_MATRIX ) {
this._inputNode = new Matrix4Node( null );
}
return super.generate( builder );
}
}
export default CameraNode;