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		<h1>Custom Blending Equation Constants</h1>

		<p>
			These work with all material types. First set the material's blending mode
			to THREE.CustomBlending, then set the desired Blending Equation, Source
			Factor and Destination Factor.
		</p>

		<h2>Code Example</h2>

		<code>
		const material = new THREE.MeshBasicMaterial( {color: 0x00ff00} );
		material.blending = THREE.CustomBlending; 
		material.blendEquation = THREE.AddEquation; //default 
		material.blendSrc = THREE.SrcAlphaFactor;  //default 
		material.blendDst = THREE.OneMinusSrcAlphaFactor; //default
		</code>

		<h2>Examples</h2>
		<p>
			[example:webgl_materials_blending_custom materials / blending / custom ]
		</p>

		<h2>Blending Equations</h2>
		<code>
		THREE.AddEquation 
		THREE.SubtractEquation 
		THREE.ReverseSubtractEquation
		THREE.MinEquation 
		THREE.MaxEquation
		</code>

		<h2>Source Factors</h2>
		<code>
		THREE.ZeroFactor 
		THREE.OneFactor 
		THREE.SrcColorFactor
		THREE.OneMinusSrcColorFactor 
		THREE.SrcAlphaFactor
		THREE.OneMinusSrcAlphaFactor 
		THREE.DstAlphaFactor
		THREE.OneMinusDstAlphaFactor 
		THREE.DstColorFactor
		THREE.OneMinusDstColorFactor 
		THREE.SrcAlphaSaturateFactor
		THREE.ConstantColorFactor
		THREE.OneMinusConstantColorFactor
		THREE.ConstantAlphaFactor
		THREE.OneMinusConstantAlphaFactor
		</code>

		<h2>Destination Factors</h2>
		<p>
			All of the Source Factors are valid as Destination Factors, except for
			<code>THREE.SrcAlphaSaturateFactor</code>
		</p>

		<h2>Source</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/src/constants.js src/constants.js]
		</p>
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