79 lines
2.1 KiB
JavaScript
79 lines
2.1 KiB
JavaScript
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import TextureNode from '../accessors/TextureNode.js';
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import { NodeUpdateType } from '../core/constants.js';
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import { addNodeClass } from '../core/Node.js';
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import { addNodeElement, nodeProxy } from '../shadernode/ShaderNode.js';
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import { viewportTopLeft } from './ViewportNode.js';
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import { Vector2, FramebufferTexture, LinearMipmapLinearFilter } from 'three';
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const _size = new Vector2();
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class ViewportTextureNode extends TextureNode {
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constructor( uvNode = viewportTopLeft, levelNode = null, framebufferTexture = null ) {
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if ( framebufferTexture === null ) {
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framebufferTexture = new FramebufferTexture();
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framebufferTexture.minFilter = LinearMipmapLinearFilter;
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}
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super( framebufferTexture, uvNode, levelNode );
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this.generateMipmaps = false;
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this.isOutputTextureNode = true;
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this.updateBeforeType = NodeUpdateType.FRAME;
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}
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updateBefore( frame ) {
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const renderer = frame.renderer;
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renderer.getDrawingBufferSize( _size );
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//
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const framebufferTexture = this.value;
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if ( framebufferTexture.image.width !== _size.width || framebufferTexture.image.height !== _size.height ) {
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framebufferTexture.image.width = _size.width;
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framebufferTexture.image.height = _size.height;
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framebufferTexture.needsUpdate = true;
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}
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//
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const currentGenerateMipmaps = framebufferTexture.generateMipmaps;
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framebufferTexture.generateMipmaps = this.generateMipmaps;
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renderer.copyFramebufferToTexture( framebufferTexture );
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framebufferTexture.generateMipmaps = currentGenerateMipmaps;
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}
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clone() {
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const viewportTextureNode = new this.constructor( this.uvNode, this.levelNode, this.value );
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viewportTextureNode.generateMipmaps = this.generateMipmaps;
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return viewportTextureNode;
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}
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}
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export default ViewportTextureNode;
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export const viewportTexture = nodeProxy( ViewportTextureNode );
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export const viewportMipTexture = nodeProxy( ViewportTextureNode, null, null, { generateMipmaps: true } );
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addNodeElement( 'viewportTexture', viewportTexture );
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addNodeElement( 'viewportMipTexture', viewportMipTexture );
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addNodeClass( 'ViewportTextureNode', ViewportTextureNode );
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