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107 lines
2.3 KiB
107 lines
2.3 KiB
import TextureNode from './TextureNode.js';
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import UniformNode from '../core/UniformNode.js';
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import ReflectVectorNode from './ReflectVectorNode.js';
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import { negate, vec3, nodeObject } from '../shadernode/ShaderNodeBaseElements.js';
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class CubeTextureNode extends TextureNode {
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constructor( value, uvNode = null, levelNode = null ) {
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super( value, uvNode, levelNode );
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this.isCubeTextureNode = true;
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}
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getInputType( /*builder*/ ) {
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return 'cubeTexture';
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}
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getConstructHash( builder ) {
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return `${ this.uuid } / ${ builder.context.environmentContext?.uuid || '' }`;
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}
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construct( builder ) {
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const properties = builder.getNodeProperties( this );
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const uvNode = this.uvNode || builder.context.uvNode || new ReflectVectorNode();
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let levelNode = this.levelNode || builder.context.levelNode;
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if ( levelNode?.isNode === true ) {
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const texture = this.value;
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levelNode = builder.context.levelShaderNode ? builder.context.levelShaderNode.call( { texture, levelNode }, builder ) : levelNode;
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}
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properties.uvNode = uvNode;
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properties.levelNode = levelNode;
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}
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generate( builder, output ) {
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const { uvNode, levelNode } = builder.getNodeProperties( this );
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const texture = this.value;
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if ( ! texture || texture.isCubeTexture !== true ) {
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throw new Error( 'CubeTextureNode: Need a three.js cube texture.' );
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}
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const textureProperty = UniformNode.prototype.generate.call( this, builder, 'cubeTexture' );
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if ( output === 'sampler' ) {
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return textureProperty + '_sampler';
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} else if ( builder.isReference( output ) ) {
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return textureProperty;
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} else {
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const nodeData = builder.getDataFromNode( this );
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let snippet = nodeData.snippet;
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if ( snippet === undefined || builder.context.tempRead === false ) {
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const uvNodeObject = nodeObject( uvNode );
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const cubeUV = vec3( negate( uvNodeObject.x ), uvNodeObject.yz );
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const uvSnippet = cubeUV.build( builder, 'vec3' );
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if ( levelNode ) {
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const levelSnippet = levelNode.build( builder, 'float' );
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snippet = builder.getCubeTextureLevel( textureProperty, uvSnippet, levelSnippet );
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} else {
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snippet = builder.getCubeTexture( textureProperty, uvSnippet );
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}
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nodeData.snippet = snippet;
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}
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return builder.format( snippet, 'vec4', output );
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}
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}
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}
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export default CubeTextureNode;
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