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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<base href="../../../" />
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
<h1>Material Constants</h1>
<p class="desc">
These constants define properties common to all material types,
with the exception of Texture Combine Operations which only apply to [page:MeshBasicMaterial.combine MeshBasicMaterial], [page:MeshLambertMaterial.combine MeshLambertMaterial] and [page:MeshPhongMaterial.combine MeshPhongMaterial].<br />
</p>
<h2>Side</h2>
<code>
THREE.FrontSide
THREE.BackSide
THREE.DoubleSide
</code>
<p>
Defines which side of faces will be rendered - front, back or both.
Default is [page:Constant FrontSide].
</p>
<h2>Blending Mode</h2>
<code>
THREE.NoBlending
THREE.NormalBlending
THREE.AdditiveBlending
THREE.SubtractiveBlending
THREE.MultiplyBlending
THREE.CustomBlending
</code>
<p>
These control the source and destination blending equations for the material's RGB and Alpha sent to the WebGLRenderer for use by WebGL.<br />
[page:Constant NormalBlending] is the default.<br />
Note that [page:Constant CustomBlending] must be set to use [page:CustomBlendingEquation Custom Blending Equations].<br />
See the [example:webgl_materials_blending materials / blending] example.<br />
</p>
<h2>Depth Mode</h2>
<code>
THREE.NeverDepth
THREE.AlwaysDepth
THREE.LessDepth
THREE.LessEqualDepth
THREE.GreaterEqualDepth
THREE.GreaterDepth
THREE.NotEqualDepth
</code>
<p>
Which depth function the material uses to compare incoming pixels Z-depth against the current Z-depth buffer value. If the result of the comparison is true, the pixel will be drawn.<br />
[page:Materials NeverDepth] will never return true.<br />
[page:Materials AlwaysDepth] will always return true.<br />
[page:Materials LessDepth] will return true if the incoming pixel Z-depth is less than the current buffer Z-depth.<br />
[page:Materials LessEqualDepth] is the default and will return true if the incoming pixel Z-depth is less than or equal to the current buffer Z-depth.<br />
[page:Materials GreaterEqualDepth] will return true if the incoming pixel Z-depth is greater than or equal to the current buffer Z-depth.<br />
[page:Materials GreaterDepth] will return true if the incoming pixel Z-depth is greater than the current buffer Z-depth.<br />
[page:Materials NotEqualDepth] will return true if the incoming pixel Z-depth is not equal to the current buffer Z-depth.<br />
</p>
<h2>Texture Combine Operations</h2>
<code>
THREE.MultiplyOperation
THREE.MixOperation
THREE.AddOperation
</code>
<p>
These define how the result of the surface's color is combined with the environment map (if present), for [page:MeshBasicMaterial.combine MeshBasicMaterial], [page:MeshLambertMaterial.combine MeshLambertMaterial] and [page:MeshPhongMaterial.combine MeshPhongMaterial]. <br />
[page:Constant MultiplyOperation] is the default and multiplies the environment map color with the surface color.<br />
[page:Constant MixOperation] uses reflectivity to blend between the two colors.<br />
[page:Constant AddOperation] adds the two colors.
</p>
<h2>Stencil Functions</h2>
<code>
THREE.NeverStencilFunc
THREE.LessStencilFunc
THREE.EqualStencilFunc
THREE.LessEqualStencilFunc
THREE.GreaterStencilFunc
THREE.NotEqualStencilFunc
THREE.GreaterEqualStencilFunc
THREE.AlwaysStencilFunc
</code>
<p>
Which stencil function the material uses to determine whether or not to perform a stencil operation.<br />
[page:Materials NeverStencilFunc] will never return true.<br />
[page:Materials LessStencilFunc] will return true if the stencil reference value is less than the current stencil value.<br />
[page:Materials EqualStencilFunc] will return true if the stencil reference value is equal to the current stencil value.<br />
[page:Materials LessEqualStencilFunc] will return true if the stencil reference value is less than or equal to the current stencil value.<br />
[page:Materials GreaterStencilFunc] will return true if the stencil reference value is greater than the current stencil value.<br />
[page:Materials NotEqualStencilFunc] will return true if the stencil reference value is not equal to the current stencil value.<br />
[page:Materials GreaterEqualStencilFunc] will return true if the stencil reference value is greater than or equal to the current stencil value.<br />
[page:Materials AlwaysStencilFunc] will always return true.<br />
</p>
<h2>Stencil Operations</h2>
<code>
THREE.ZeroStencilOp
THREE.KeepStencilOp
THREE.ReplaceStencilOp
THREE.IncrementStencilOp
THREE.DecrementStencilOp
THREE.IncrementWrapStencilOp
THREE.DecrementWrapStencilOp
THREE.InvertStencilOp
</code>
<p>
Which stencil operation the material will perform on the stencil buffer pixel if the provided stencil function passes.<br />
[page:Materials ZeroStencilOp] will set the stencil value to 0.<br />
[page:Materials KeepStencilOp] will not change the current stencil value.<br />
[page:Materials ReplaceStencilOp] will replace the stencil value with the specified stencil reference value.<br />
[page:Materials IncrementStencilOp] will increment the current stencil value by 1.<br />
[page:Materials DecrementStencilOp] will decrement the current stencil value by 1.<br />
[page:Materials IncrementWrapStencilOp] will increment the current stencil value by 1. If the value increments past 255 it will be set to 0.<br />
[page:Materials DecrementWrapStencilOp] will increment the current stencil value by 1. If the value decrements below 0 it will be set to 255.<br />
[page:Materials InvertStencilOp] will perform a bitwise iversion of the current stencil value.<br />
</p>
<h2>Source</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/constants.js src/constants.js]
</p>
</body>
</html>