/** @packageDocumentation
 * @module WebGL
 */
import { ProgramBuilder, VertexShaderBuilder } from "../ShaderBuilder";
import { IsAnimated, IsInstanced, PositionType } from "../TechniqueFlags";
export type EdgeBuilderType = "SegmentEdge" | "Silhouette" | "IndexedEdge";
/** @internal */
export declare function addEdgeContrast(vert: VertexShaderBuilder): void;
/** @internal */
export declare function createEdgeBuilder(type: EdgeBuilderType, instanced: IsInstanced, isAnimated: IsAnimated, posType: PositionType): ProgramBuilder;
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