declare const _default: "\nfn addLightMap(\n    lightmap: vec3f,\n    dir: vec3f,\n    worldNormal: vec3f,\n    viewDir: vec3f,\n    reflectionDir: vec3f,\n    gloss: f32,\n    specularity: vec3f,\n    vertexNormal: vec3f,\n    tbn: mat3x3f\n#if defined(LIT_IRIDESCENCE)\n    , iridescenceFresnel: vec3f,\n    iridescenceIntensity: f32\n#endif\n) {\n\n    // directional lightmap\n    #if defined(LIT_SPECULAR) && defined(LIT_DIR_LIGHTMAP)\n\n        if (dot(dir, dir) < 0.0001) {\n                dDiffuseLight = dDiffuseLight + lightmap;\n        } else {\n            let vlight: f32 = saturate(dot(dir, -vertexNormal));\n            let flight: f32 = saturate(dot(dir, -worldNormal));\n            let nlight: f32 = (flight / max(vlight, 0.01)) * 0.5;\n\n            dDiffuseLight = dDiffuseLight + lightmap * nlight * 2.0;\n\n            let halfDir: vec3f = normalize(-dir + viewDir);\n            var specularLight: vec3f = lightmap * getLightSpecular(halfDir, reflectionDir, worldNormal, viewDir, dir, gloss, tbn);\n\n            #ifdef LIT_SPECULAR_FRESNEL\n\n                specularLight = specularLight *\n                    getFresnel(dot(viewDir, halfDir),\n                    gloss,\n                    specularity\n                #if defined(LIT_IRIDESCENCE)\n                    , iridescenceFresnel,\n                    iridescenceIntensity\n                #endif\n                    );\n            #endif\n\n            dSpecularLight = dSpecularLight + specularLight;\n        }\n\n    #else // non-directional lightmap\n\n        dDiffuseLight = dDiffuseLight + lightmap;\n\n    #endif\n}\n";
export default _default;