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体验新版 GitCode,发现更多精彩内容 >>
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8578b58b
编写于
7月 11, 2018
作者:
P
paulmasson
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docs/api/lights/DirectionalLight.html
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docs/api/lights/DirectionalLight.html
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@@ -52,10 +52,10 @@
</p>
<code>
// White directional light at half intensity shining from the top.
var directionalLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
scene.add( directionalLight );
</code>
// White directional light at half intensity shining from the top.
var directionalLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
scene.add( directionalLight );
</code>
<h2>
Constructor
</h2>
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@@ -104,26 +104,28 @@ scene.add( directionalLight );
*Note*: For the target's position to be changed to anything other than the default,
it must be added to the [page:Scene scene] using
<code>
scene.add( light.target );
</code>
</p>
<code>
scene.add( light.target );
</code>
<p>
This is so that the target's [page:Object3D.matrixWorld matrixWorld] gets automatically
updated each frame.
<br
/><br
/>
It is also possible to set the target to be another object in the scene (anything with a
[page:Object3D.position position] property), like so:
<code>
var targetObject = new THREE.Object3D();
scene.add(targetObject);
</p>
<code>
var targetObject = new THREE.Object3D();
scene.add(targetObject);
light.target = targetObject;
</code>
light.target = targetObject;
</code>
<p>
The directionalLight will now track the target object.
</p>
<h2>
Methods
</h2>
See the base [page:Light Light] class for common methods.
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