"//": "Global settings which apply across all filteres/kernels:",
    "splitSpecularDiffuse": true,            "//": "If true, filters specular and diffuse separately",
    "splitSpecularDiffuseVariances": true,   "//": "When splitSpecularDiffuse and the file has diffuse_var and",
                                             "//": "specular_var layers, use them.",
    "warpType": "linear",                    "//": "cross-frame warp method: linear or nearest",
    "gpuIndex": 0,                           "//": "use GPU denoising on graphics card #0",