**Experimental** If true, use a series of shadow maps in a cascade. This can give better z-depth resolution for a directional light.<br/>
Default — *false*.
</div>
<h3>[property:Vector3 shadowCascadeOffset]</h3>
<h3>[property:Integer shadowCascadeCount]</h3>
<div>
???<br/>
Default — *Three.Vector3( 0, 0, -1000 )*.
Number of shadow maps to allocate in a cascade (one after another).<br/>
Default — *2*.
</div>
<h3>[property:Integer shadowCascadeCount]</h3>
<h3>[property:Vector3 shadowCascadeOffset]</h3>
<div>
???<br/>
Default — *2*.
A relative position to real camera where virtual shadow cameras are attached. A magic vector; scene and light orientation dependent.<br/>
Default — *Three.Vector3( 0, 0, -1000 )*.
</div>
<h3>[property:Array shadowCascadeBias]</h3>
<div>
???<br/>
An array of shadowMapBias values for the corresponding shadow map in the cascade, near to far.<br/>
Default — <strong>[ 0, 0, 0 ]</strong>.
</div>
<h3>[property:Array shadowCascadeWidth]</h3>
<div>
???<br/>
An array of shadowMapWidth values for the corresponding shadow map in the cascade, near to far.<br/>
Default — <strong>[ 512, 512, 512 ]</strong>.
</div>
<h3>[property:Array shadowCascadeHeight]</h3>
<div>
???<br/>
An array of shadowMapHeight values for the corresponding shadow map in the cascade, near to far.<br/>
Default — <strong>[ 512, 512, 512 ]</strong>.
</div>
<h3>[property:Array shadowCascadeNearZ]</h3>
<div>
??? <br/>
An array of shadowMapNear values for the corresponding shadow map in the cascade, near to far. These typically start with -1.0 (near plane) and match with the previous shadowCascadeFarZ array value.<br/>
An array of shadowMapFar values for the corresponding shadow map in the cascade, near to far. These typically match with the next shadowCascadeNearZ array value, ending in 1.0.<br/>
Array of size shadowCascadeCount of [page:DirectionalLight THREE.DirectionalLight] objects. This holds the series of separate shadow maps in a cascade, near to far. Created internally.
</div>
<h3>[property:RenderTarget shadowMap]</h3>
<h3>[property:Vector2 shadowMapSize]</h3>
<div>
??? <br/>
Default — *null*.
The shadowMapWidth and shadowMapHeight stored in a [page:Vector2 THREE.Vector2]. Set internally during rendering.