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35 lines
625 B
35 lines
625 B
2 years ago
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import TempNode from '../core/TempNode.js';
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import { ShaderNode, uv, add, mul, floor, mod, sign } from '../shadernode/ShaderNodeBaseElements.js';
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const checkerShaderNode = new ShaderNode( ( inputs ) => {
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const uv = mul( inputs.uv, 2.0 );
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const cx = floor( uv.x );
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const cy = floor( uv.y );
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const result = mod( add( cx, cy ), 2.0 );
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return sign( result );
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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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generate( builder ) {
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return checkerShaderNode.call( { uv: this.uvNode } ).build( builder );
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}
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}
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export default CheckerNode;
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