import type { LC, LiveElement } from '@use-gpu/live';
import type { ShaderModule, ShaderSource } from '@use-gpu/shader';
export type ShaderLitMaterialProps = {
    /** Flat shader, for unlit passes (e.g. shadow map)
  
    fn getFragment(color: vec4<f32>, uv: vec4<f32>, st: vec4<f32>) -> vec4<f32>
    */
    fragment: ShaderModule;
    /** Surface shader, for material properties
  
    fn getSurface(
      color: vec4<f32>,
      uv: vec4<f32>,
      st: vec4<f32>,
      normal: vec4<f32>,
      tangent: vec4<f32>,
      position: vec4<f32>,
      coord: vec4<f32>,
    ) -> SurfaceFragment
    */
    surface: ShaderModule;
    /** Depth-only shader, for optimized shadow passes (optional)
    fn getDepth(
      alpha: f32,
      uv: vec4<f32>,
      st: vec4<f32>,
      position: vec4<f32>,
    ) -> DepthFragment;
    */
    depth?: ShaderModule;
    /** Environment shader, for reflections
  
    fn getEnvironment(
      N: vec3<f32>,
      V: vec3<f32>,
      surface: SurfaceFragment,
    ) -> vec3<f32>
    */
    environment?: ShaderModule;
    /** Light fragment shader, for combining lights. e.g. `getLitFragment`.
  
    fn getLight(surface: SurfaceFragment) -> vec4<f32>
    */
    light?: ShaderModule;
    /** Material lighting shader, for lighting model. e.g. `applyPBRMaterial`.
  
    fn applyMaterial(
      N: vec3<f32>,
      L: vec3<f32>,
      V: vec3<f32>,
      surface: SurfaceFragment,
    ) -> vec4<f32>
    */
    apply?: ShaderModule;
    render?: (material: Record<string, Record<string, ShaderSource | null | undefined | void>>) => LiveElement;
    children?: LiveElement | ((material: Record<string, Record<string, ShaderSource | null | undefined | void>>) => LiveElement);
};
export declare const ShaderLitMaterial: LC<ShaderLitMaterialProps>;