43 lines
		
	
	
		
			781 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			43 lines
		
	
	
		
			781 B
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
import TempNode from '../core/TempNode.js';
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import { uv } from '../accessors/UVNode.js';
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import { addNodeClass } from '../core/Node.js';
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import { addNodeElement, tslFn, nodeProxy } from '../shadernode/ShaderNode.js';
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const checkerShaderNode = tslFn( ( inputs ) => {
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	const uv = inputs.uv.mul( 2.0 );
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	const cx = uv.x.floor();
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	const cy = uv.y.floor();
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	const result = cx.add( cy ).mod( 2.0 );
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	return result.sign();
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} );
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class CheckerNode extends TempNode {
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	constructor( uvNode = uv() ) {
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		super( 'float' );
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		this.uvNode = uvNode;
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	}
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	setup() {
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		return checkerShaderNode( { uv: this.uvNode } );
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	}
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}
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export default CheckerNode;
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export const checker = nodeProxy( CheckerNode );
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addNodeElement( 'checker', checker );
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addNodeClass( 'CheckerNode', CheckerNode );
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