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101 lines
1.6 KiB
101 lines
1.6 KiB
2 years ago
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import UniformNode from '../core/UniformNode.js';
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import UVNode from './UVNode.js';
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class TextureNode extends UniformNode {
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constructor( value, uvNode = new UVNode(), levelNode = null ) {
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super( value, 'vec4' );
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this.isTextureNode = true;
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this.uvNode = uvNode;
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this.levelNode = levelNode;
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}
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getUniformHash( /*builder*/ ) {
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return this.value.uuid;
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}
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getInputType( /*builder*/ ) {
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return 'texture';
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}
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generate( builder, output ) {
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const texture = this.value;
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if ( ! texture || texture.isTexture !== true ) {
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throw new Error( 'TextureNode: Need a three.js texture.' );
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}
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const textureProperty = super.generate( builder, 'texture' );
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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 ) {
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const uvSnippet = this.uvNode.build( builder, 'vec2' );
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const levelNode = this.levelNode;
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if ( levelNode !== null ) {
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const levelSnippet = levelNode.build( builder, 'float' );
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snippet = builder.getTextureLevel( textureProperty, uvSnippet, levelSnippet );
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} else {
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snippet = builder.getTexture( 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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serialize( data ) {
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super.serialize( data );
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data.value = this.value.toJSON( data.meta ).uuid;
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}
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deserialize( data ) {
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super.deserialize( data );
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this.value = data.meta.textures[ data.value ];
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}
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}
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export default TextureNode;
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