{ "textures": [ { "name": "", "channels": ["base_r", "base_g", "base_b", "1.0"], "color_space": "linear" }, { "name": "normal", "channels": ["nor_r", "nor_g", "nor_b", "1.0"], "color_space": "linear" }, { "name": "mer", "channels": ["metal", "emis", "rough", "1.0"], "color_space": "linear" } ] }