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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| 
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| class FogNode extends Node {
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| 
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| 	constructor( colorNode, factorNode ) {
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| 
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| 		super( 'float' );
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| 
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| 		this.isFogNode = true;
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| 
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| 		this.colorNode = colorNode;
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| 		this.factorNode = factorNode;
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| 
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| 	}
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| 
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| 	getViewZNode( builder ) {
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| 
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| 		let viewZ;
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| 
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| 		const getViewZ = builder.context.getViewZ;
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| 
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| 		if ( getViewZ !== undefined ) {
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| 
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| 			viewZ = getViewZ( this );
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| 
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| 		}
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| 
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| 		return ( viewZ || positionView.z ).negate();
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| 
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| 	}
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| 
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| 	setup() {
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| 
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| 		return this.factorNode;
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| 
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| 	}
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| 
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| }
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| 
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| export default FogNode;
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| 
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| export const fog = nodeProxy( FogNode );
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| 
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| addNodeElement( 'fog', fog );
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| 
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| addNodeClass( 'FogNode', FogNode );
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