49 lines
		
	
	
		
			764 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			49 lines
		
	
	
		
			764 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import Node, { addNodeClass } from '../core/Node.js';
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import { positionView } from '../accessors/PositionNode.js';
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import { addNodeElement, nodeProxy } from '../shadernode/ShaderNode.js';
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class FogNode extends Node {
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	constructor( colorNode, factorNode ) {
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		super( 'float' );
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		this.isFogNode = true;
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		this.colorNode = colorNode;
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		this.factorNode = factorNode;
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	}
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	getViewZNode( builder ) {
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		let viewZ;
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		const getViewZ = builder.context.getViewZ;
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		if ( getViewZ !== undefined ) {
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			viewZ = getViewZ( this );
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		}
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		return ( viewZ || positionView.z ).negate();
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	}
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	setup() {
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		return this.factorNode;
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	}
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}
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export default FogNode;
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export const fog = nodeProxy( FogNode );
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addNodeElement( 'fog', fog );
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addNodeClass( 'FogNode', FogNode );
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