PhotonMF/scenes/furnace.json

{
    "environment": {
	"color": [1.0, 1.0, 1.0]
    },

    "sphere": {
	"position": [0.0, 0.0, -1.0],
	"radius": 1.0,
	"material": {
	    "diffuse": [0.5, 0.5, 0.5],
	}
    }
}