JSON Object Scene format 4

Work in progress.

Example of Scene with a Box and a Light.

{
	"metadata": {
		"version": 4.3,
		"type": "Object",
		"generator": "ObjectExporter"
	},
	"geometries": [
		{
			"uuid": "C3BF1E70-0BE7-4E6D-B184-C9F1E84A3423",
			"type": "BufferGeometry",
			"data": {
				"attributes": {
					"position": {
						"itemSize": 3,
						"type": "Float32Array",
						"array": [50,50,50,...]
					},
					"normal": {
						"itemSize": 3,
						"type": "Float32Array",
						"array": [1,0,0,...]
					},
					"uv": {
						"itemSize": 2,
						"type": "Float32Array",
						"array": [0,1,...]
					}
				},
				"boundingSphere": {
					"center": [0,0,0],
					"radius": 86.60254037844386
				}
			}
		}
	],
	"materials": [
		{
			"uuid": "87D95D6C-6BB4-4B8F-8166-A3A6945BA5E3",
			"type": "MeshPhongMaterial",
			"color": 16777215,
			"ambient": 16777215,
			"emissive": 0,
			"specular": 1118481,
			"shininess": 30,
			"opacity": 1,
			"transparent": false,
			"wireframe": false
		}
	],
	"object": {
		"uuid": "89529CC6-CBAC-412F-AFD1-FEEAE785BA19",
		"type": "Scene",
		"matrix": [1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1],
		"children": [
			{
				"uuid": "33FA38D9-0AAC-4657-9BBE-5E5780DDFB2F",
				"name": "Box 1",
				"type": "Mesh",
				"geometry": "C3BF1E70-0BE7-4E6D-B184-C9F1E84A3423",
				"material": "87D95D6C-6BB4-4B8F-8166-A3A6945BA5E3",
				"matrix": [1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1]
			},
			{
				"uuid": "16F2E381-2B73-44C4-A7BB-38D7E1CD2381",
				"name": "PointLight 1",
				"type": "PointLight",
				"color": 16777215,
				"intensity": 1,
				"distance": 0,
				"matrix": [1,0,0,0,0,1,0,0,0,0,1,0,100,200,150,1]
			}
		]
	}
}

Example of scene with a simple indexed BufferGeometry plane

{
	"metadata": {
		"version": 4.3,
		"type": "Object",
		"generator": "ObjectExporter"
	},
	"textures": [],
	"images": [],
	"geometries": [
		{
			"uuid": "0A8F2988-626F-411C-BD6A-AC656C4E6878",
			"type": "BufferGeometry",
			"data": {
				"attributes": {
					"position": {
						"itemSize": 3,
						"type": "Float32Array",
						"array": [1,1,0,1,-1,0,-1,-1,0,-1,1,0],
						"normalized": false
					},
					"normal": {
						"itemSize": 3,
						"type": "Float32Array",
						"array": [0,0,1,0,0,1,0,0,1,0,0,1],
						"normalized": false
					},
					"uv": {
						"itemSize": 2,
						"type": "Float32Array",
						"array": [1,1,1,0,0,0,0,1],
						"normalized": false
					}
				},
				// type of index must be Uint8Array or Uint16Array.
				// # vertices thus cannot exceed 255 or 65535 respectively.
				// The current parser is able to read the index array
				// if it is nested in the attributes object, but such
				// syntax is no longer encouraged.
				"index": {
					"type": "Uint16Array",
					"array": [0,1,2,0,2,3]
				},
				"boundingSphere": {
					"center": [0,0,0],
					"radius": 1
				}
			}
		}
	],
	"materials": [],
	"object": {
		"uuid": "378FAA8D-0888-4249-8701-92D1C1F37C51",
		"type": "Scene",
		"matrix": [ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 ],
		"children": [
			{
				"uuid": "E7B44C44-DD75-4C29-B571-21AD6AEF0CA9",
				"name": "SharedVertexTest",
				"type": "Mesh",
				"geometry": "0A8F2988-626F-411C-BD6A-AC656C4E6878",
				"matrix": [ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 ]
			}
		]
	}
}