/**
 * Point light shadow shader – renders linear depth into cube map faces.
 *
 * Unlike directional shadows (depth-only), point shadows need a fragment shader
 * to write linear depth (distance / far) via @builtin(frag_depth) for consistent
 * precision across all 6 cube faces.
 *
 * Group 0: object uniforms (reuses existing objectBGL)
 * Group 1: PointLightShadow { lightVP, lightPosAndFar }
 */
export declare const POINT_SHADOW_SHADER = "\nstruct ObjectUniforms {\n  mvp: mat4x4<f32>,\n  model: mat4x4<f32>,\n  normalMatrix: mat4x4<f32>,\n};\n\nstruct PointLightShadow {\n  lightVP: mat4x4<f32>,\n  lightPosAndFar: vec4<f32>,\n};\n\n@group(0) @binding(0) var<uniform> object: ObjectUniforms;\n@group(1) @binding(0) var<uniform> shadow: PointLightShadow;\n\nstruct VsOut {\n  @builtin(position) clipPos: vec4<f32>,\n  @location(0) worldPos: vec3<f32>,\n};\n\n@vertex\nfn vs(@location(0) position: vec3<f32>) -> VsOut {\n  let worldPos = (object.model * vec4<f32>(position, 1.0)).xyz;\n  var out: VsOut;\n  out.clipPos = shadow.lightVP * vec4<f32>(worldPos, 1.0);\n  out.worldPos = worldPos;\n  return out;\n}\n\nstruct FsOut {\n  @builtin(frag_depth) depth: f32,\n};\n\n@fragment\nfn fs(@location(0) worldPos: vec3<f32>) -> FsOut {\n  let dist = length(worldPos - shadow.lightPosAndFar.xyz);\n  var out: FsOut;\n  out.depth = dist / shadow.lightPosAndFar.w;\n  return out;\n}\n";
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