@babylonjs/core/Engines/Processors/Expressions/Operators/shaderDefineIsDefinedOperator.d.ts

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import { ShaderDefineExpression } from "../shaderDefineExpression.js";
/** @internal */
export declare class ShaderDefineIsDefinedOperator extends ShaderDefineExpression {
    define: string;
    not: boolean;
    constructor(define: string, not?: boolean);
    isTrue(preprocessors: {
        [key: string]: string;
    }): boolean;
}