javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
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		[page:Object3D] &rarr; [page:Light] &rarr;

		<h1>[name]</h1>

		<div class="desc">
			Affects objects using [page:MeshLambertMaterial] or [page:MeshPhongMaterial].
		</div>


		<h2>Example</h2>
		<div>[example:canvas_morphtargets_horse morphtargets / horse ]</div>
		<div>[example:misc_controls_fly controls / fly ]</div>
		<div>[example:misc_lights_test lights / test ]</div>
		<div>[example:vr_cubes cubes ]</div>
		<div>[example:webgl_effects_parallaxbarrier effects / parallaxbarrier ]</div>
		<div>[example:webgl_effects_stereo effects / stereo ]</div>
		<div>[example:webgl_geometry_extrude_splines geometry / extrude / splines ]</div>
		<div>[example:webgl_materials_bumpmap materials / bumpmap ]</div>
		<div>[example:webgl_materials_cubemap_balls_reflection materials / cubemap / balls / reflection ]</div>

		<code>// White directional light at half intensity shining from the top.

var directionalLight = new THREE.DirectionalLight( 0xffffff, 0.5 );
directionalLight.position.set( 0, 1, 0 );
scene.add( directionalLight );</code>


		<h2>Constructor</h2>

		<h3>[name]( [page:Integer hex], [page:Float intensity] )</h3>
		<div>
		[page:Integer hex] -- Numeric value of the RGB component of the color. <br />
		[page:Float intensity] -- Numeric value of the light's strength/intensity.
		</div>
		<div>
		Creates a light that shines from a specific direction not from a specific position.  This light will behave
		as though it is infinitely far away and the rays produced from it are all parallel.  The best
		analogy would be a light source that acts like the sun: the sun is so far away that all sunlight
		hitting objects comes from the same angle.
		</div>

		<h2>Properties</h2>

		See the base [page:Light Light] class for common properties.

		<h3>[property:Object3D target]</h3>
		<div>
			Target used for shadow camera orientation.
		</div>

		<h3>[property:DirectionalLightShadow shadow]</h3>
		<div>
			This property stores all relevant information for rendering the shadow of the light.<br />
		</div>

		<h3>[property:Boolean castShadow]</h3>
		<div>
			If set to *true* light will cast dynamic shadows. *Warning*: This is expensive and requires tweaking to get shadows looking right.<br />
			Default — *false*.
		</div>

		<h2>Methods</h2>

		See the base [page:Light Light] class for common methods.

		<h3>[method:DirectionalLight copy]( [page:DirectionalLight source] )</h3>
		<div>
		<br />
		Copies value of *source* to this DirectionalLight object.
		</div>

		<h2>Source</h2>

		[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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