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56 lines
1.0 KiB
56 lines
1.0 KiB
import Node from './Node.js';
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import { NodeShaderStage } from './constants.js';
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class VaryingNode extends Node {
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constructor( node, name = null ) {
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super();
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this.node = node;
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this.name = name;
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}
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getHash( builder ) {
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return this.name || super.getHash( builder );
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}
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getNodeType( builder ) {
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// VaryingNode is auto type
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return this.node.getNodeType( builder );
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}
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generate( builder ) {
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const { name, node } = this;
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const type = this.getNodeType( builder );
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const nodeVarying = builder.getVaryingFromNode( this, type );
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// this property can be used to check if the varying can be optimized for a var
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nodeVarying.needsInterpolation ||= builder.shaderStage === 'fragment';
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if ( name !== null ) {
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nodeVarying.name = name;
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}
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const propertyName = builder.getPropertyName( nodeVarying, NodeShaderStage.VERTEX );
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// force node run in vertex stage
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builder.flowNodeFromShaderStage( NodeShaderStage.VERTEX, node, type, propertyName );
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return builder.getPropertyName( nodeVarying );
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}
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}
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export default VaryingNode;
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