THREE.CullFaceNone
		THREE.CullFaceBack
		THREE.CullFaceFront
		THREE.CullFaceFrontBack
		
		
		[page:constant CullFaceNone] disables face culling.
		[page:constant CullFaceBack] culls back faces (default).
		[page:constant CullFaceFront] culls front faces.
		[page:constant CullFaceFrontBack] culls both front and back faces.
		
		THREE.FrontFaceDirectionCW
		THREE.FrontFaceDirectionCCW
		
		
		[page:constant FrontFaceDirectionCW] sets the winding order for polygons to clockwise.
		[page:constant FrontFaceDirectionCCW] sets the winding order for polygons to counter-clockwise (default).
		
		THREE.BasicShadowMap
		THREE.PCFShadowMap
		THREE.PCFSoftShadowMap
		THREE.VSMShadowMap
		
		
		These define the WebGLRenderer's [page:WebGLRenderer.shadowMap.type shadowMap.type] property.
		[page:constant BasicShadowMap] gives unfiltered shadow maps - fastest, but lowest quality.
		[page:constant PCFShadowMap] filters shadow maps using the Percentage-Closer Filtering (PCF) algorithm (default).
		[page:constant PCFSoftShadowMap] filters shadow maps using the Percentage-Closer Soft Shadows (PCSS) algorithm.
		[page:constant VSMShadowMap] filters shadow maps using the Variance Shadow Map (VSM) algorithm. When using VSMShadowMap all shadow receivers will also cast shadows.
		
		THREE.NoToneMapping
		THREE.LinearToneMapping
		THREE.ReinhardToneMapping
		THREE.Uncharted2ToneMapping
		THREE.CineonToneMapping
		THREE.ACESFilmicToneMapping
		
		
		These define the WebGLRenderer's [page:WebGLRenderer.toneMapping toneMapping] property.
		This is used to approximate the appearance of high dynamic range (HDR) on the
		low dynamic range medium of a standard computer monitor or mobile device's screen.
		[page:constant NoToneMapping] disables tone mapping.
		[page:constant LinearToneMapping] is the default.
		See the [example:webgl_tonemapping WebGL / tonemapping] example.
		
[link:https://github.com/mrdoob/three.js/blob/master/src/constants.js src/constants.js]