import type { Node2D, GlRenderState, Kind, RenderProxy2D } from '@flighthq/types/contract';
import type { GlBitmapShader } from '@flighthq/types/contract';
export declare function getGlMaterialShader(state: GlRenderState, kind: Kind): GlBitmapShader | null;
export declare function getGlShader(renderProxy: RenderProxy2D): GlBitmapShader | undefined;
export declare function registerGlMaterialShader(state: GlRenderState, kind: Kind, shader: GlBitmapShader): void;
/**
 * Returns the shader to draw renderProxy with: the per-node binding when one is
 * set, then the material-kind shader, otherwise the state's default bitmap shader.
 * The per-node lookup is reached only through the installed resolver, so it (and
 * the binding map) stay off the hot path and tree-shake until setGlShader is used.
 */
export declare function resolveGlShader(state: GlRenderState, renderProxy: RenderProxy2D): GlBitmapShader;
/**
 * Binds a custom Gl shader to a display object for the given render state, or
 * clears it when shader is null. The binding lives on the render state side, not
 * the scene graph, so the same display object can carry different shaders (or
 * none) in different render states — e.g. a custom shader for an offscreen pass
 * that the standard renderer has no memory of.
 */
export declare function setGlShader(state: GlRenderState, node: Node2D, shader: GlBitmapShader | null): void;
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