three
Version:
JavaScript 3D library
90 lines (47 loc) • 1.59 kB
JavaScript
import InputNode from '../core/InputNode.js';
import UVNode from '../accessors/UVNode.js';
class TextureNode extends InputNode {
constructor( value = null, uvNode = new UVNode(), biasNode = null ) {
super( 'texture' );
this.value = value;
this.uvNode = uvNode;
this.biasNode = biasNode;
}
generate( builder, output ) {
const texture = this.value;
if ( ! texture || texture.isTexture !== true ) {
throw new Error( 'TextureNode: Need a three.js texture.' );
}
const type = this.getNodeType( builder );
const textureProperty = super.generate( builder, type );
if ( output === 'sampler2D' || output === 'texture2D' ) {
return textureProperty;
} else if ( output === 'sampler' ) {
return textureProperty + '_sampler';
} else {
const nodeData = builder.getDataFromNode( this );
let snippet = nodeData.snippet;
if ( snippet === undefined ) {
const uvSnippet = this.uvNode.build( builder, 'vec2' );
const biasNode = this.biasNode;
let biasSnippet = null;
if ( biasNode !== null ) {
biasSnippet = biasNode.build( builder, 'float' );
}
snippet = builder.getTexture( textureProperty, uvSnippet, biasSnippet );
nodeData.snippet = snippet;
}
return builder.format( snippet, 'vec4', output );
}
}
serialize( data ) {
super.serialize( data );
data.value = this.value.toJSON( data.meta ).uuid;
}
deserialize( data ) {
super.serialize( data );
this.value = data.meta.textures[ data.value ];
}
}
TextureNode.prototype.isTextureNode = true;
export default TextureNode;