/**
 * Shadow mapping shared constants and bind group layout factories.
 *
 * Group 2 layout (main pass) — 12 bindings, 10 sampled textures:
 *   binding 0:     uniform buffer (848 bytes)
 *   binding 1:     comparison sampler
 *   binding 2–3:   dir cascade 0 depth maps (slots 0–1)
 *   binding 4–5:   dir cascade 1 depth maps (slots 0–1)
 *   binding 6–7:   point cubemaps (slots 0–1)
 *   binding 8–11:  spot depth maps (slots 0–3)
 *
 * Combined with group 1's 3 material textures = 13 per-stage sampled textures
 * (WebGPU maxSampledTexturesPerShaderStage limit is 16).
 *
 * Uniform layout (848 bytes):
 *   0–351     DirShadowSlot[2]   (176B each)
 *   352–415   PointShadowSlot[2] (32B each)
 *   416–799   SpotShadowSlot[4]  (96B each)
 *   800–815   dirLightToSlot     vec4<u32>
 *   816–831   pointLightToSlot   vec4<u32>
 *   832–847   spotLightToSlot    vec4<u32>
 */
export declare const SHADOW_UNIFORM_SIZE = 848;
export declare const MAX_DIR_SHADOW_SLOTS = 2;
export declare const MAX_POINT_SHADOW_SLOTS = 2;
export declare const MAX_SPOT_SHADOW_SLOTS = 4;
/** Sentinel u32 value indicating no shadow slot for a light index. */
export declare const SHADOW_SLOT_NONE = 4294967295;
export declare function createShadowBindGroupLayout(device: GPUDevice): GPUBindGroupLayout;
export interface DummyShadowResources {
    uniformBuffer: GPUBuffer;
    dummy2DView: GPUTextureView;
    dummyCubeView: GPUTextureView;
    sampler: GPUSampler;
    bindGroup: GPUBindGroup;
}
export declare function createDummyShadowResources(device: GPUDevice, layout: GPUBindGroupLayout): DummyShadowResources;
//# sourceMappingURL=shadow-uniforms.d.ts.map