declare const _default: "\nfloat _getShadowPCF5x5(SHADOWMAP_ACCEPT(shadowMap), vec3 shadowCoord, vec3 shadowParams) {\n    // http://the-witness.net/news/2013/09/shadow-mapping-summary-part-1/\n\n    float z = shadowCoord.z;\n    vec2 uv = shadowCoord.xy * shadowParams.x; // 1 unit - 1 texel\n    float shadowMapSizeInv = 1.0 / shadowParams.x;\n    vec2 base_uv = floor(uv + 0.5);\n    float s = (uv.x + 0.5 - base_uv.x);\n    float t = (uv.y + 0.5 - base_uv.y);\n    base_uv -= vec2(0.5);\n    base_uv *= shadowMapSizeInv;\n\n\n    float uw0 = (4.0 - 3.0 * s);\n    float uw1 = 7.0;\n    float uw2 = (1.0 + 3.0 * s);\n\n    float u0 = (3.0 - 2.0 * s) / uw0 - 2.0;\n    float u1 = (3.0 + s) / uw1;\n    float u2 = s / uw2 + 2.0;\n\n    float vw0 = (4.0 - 3.0 * t);\n    float vw1 = 7.0;\n    float vw2 = (1.0 + 3.0 * t);\n\n    float v0 = (3.0 - 2.0 * t) / vw0 - 2.0;\n    float v1 = (3.0 + t) / vw1;\n    float v2 = t / vw2 + 2.0;\n\n    float sum = 0.0;\n\n    u0 = u0 * shadowMapSizeInv + base_uv.x;\n    v0 = v0 * shadowMapSizeInv + base_uv.y;\n\n    u1 = u1 * shadowMapSizeInv + base_uv.x;\n    v1 = v1 * shadowMapSizeInv + base_uv.y;\n\n    u2 = u2 * shadowMapSizeInv + base_uv.x;\n    v2 = v2 * shadowMapSizeInv + base_uv.y;\n\n    sum += uw0 * vw0 * textureShadow(shadowMap, vec3(u0, v0, z));\n    sum += uw1 * vw0 * textureShadow(shadowMap, vec3(u1, v0, z));\n    sum += uw2 * vw0 * textureShadow(shadowMap, vec3(u2, v0, z));\n\n    sum += uw0 * vw1 * textureShadow(shadowMap, vec3(u0, v1, z));\n    sum += uw1 * vw1 * textureShadow(shadowMap, vec3(u1, v1, z));\n    sum += uw2 * vw1 * textureShadow(shadowMap, vec3(u2, v1, z));\n\n    sum += uw0 * vw2 * textureShadow(shadowMap, vec3(u0, v2, z));\n    sum += uw1 * vw2 * textureShadow(shadowMap, vec3(u1, v2, z));\n    sum += uw2 * vw2 * textureShadow(shadowMap, vec3(u2, v2, z));\n\n    sum *= 1.0f / 144.0;\n\n    sum = saturate(sum);\n\n    return sum;\n}\n\nfloat getShadowPCF5x5(SHADOWMAP_ACCEPT(shadowMap), vec3 shadowCoord, vec4 shadowParams) {\n    return _getShadowPCF5x5(SHADOWMAP_PASS(shadowMap), shadowCoord, shadowParams.xyz);\n}\n\nfloat getShadowSpotPCF5x5(SHADOWMAP_ACCEPT(shadowMap), vec3 shadowCoord, vec4 shadowParams) {\n    return _getShadowPCF5x5(SHADOWMAP_PASS(shadowMap), shadowCoord, shadowParams.xyz);\n}\n";
export default _default;