An extension of the [page:MeshStandardMaterial] that allows for greater control over reflectivity.
Note that for best results you should always specify an [page:.envMap environment map] when using this material.
[page:Object parameters] - (optional) an object with one or more properties defining the material's appearance.
Any property of the material (including any property inherited from [page:Material] and [page:MeshStandardMaterial]) can be passed in here.
The exception is the property [page:Hexadecimal color], which can be passed in as a hexadecimal
string and is *0xffffff* (white) by default. [page:Color.set]( color ) is called internally.
See the base [page:Material] and [page:MeshStandardMaterial] classes for common properties.
Clearcoat level, from *0.0* to *1.0*. Default is *0.0*.
How rough the clearcoat appears, from *0.0* to *1.0*. Default is *0.0*.
Used to check whether this or derived classes are mesh physical materials. Default is *true*.
You should not change this, as it used internally for optimisation.
An object of the form:
{
'STANDARD': ''
'PHYSICAL': '',
};
This is used by the [page:WebGLRenderer] for selecting shaders.
Degree of reflectivity, from *0.0* to *1.0*. Default is *0.5*.
This models the reflectivity of non-metallic materials. It has no effect when [page:MeshStandardMaterial.metalness metalness] is *1.0*
See the base [page:Material] and [page:MeshStandardMaterial] classes for common methods.
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]