You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
2.9 KiB
96 lines
2.9 KiB
3 years ago
|
<!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>
|
||
|
|
[page:LightShadow] →
|
||
|
|
|
||
|
|
<h1>[name]</h1>
|
||
|
|
|
||
|
|
<p class="desc">
|
||
|
|
This is used internally by [page:PointLight PointLights] for calculating shadows.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
|
||
|
|
<h2>Code Example</h2>
|
||
|
|
<code>
|
||
|
|
//Create a WebGLRenderer and turn on shadows in the renderer
|
||
|
|
const renderer = new THREE.WebGLRenderer();
|
||
|
|
renderer.shadowMap.enabled = true;
|
||
|
|
renderer.shadowMap.type = THREE.PCFSoftShadowMap; // default THREE.PCFShadowMap
|
||
|
|
|
||
|
|
//Create a PointLight and turn on shadows for the light
|
||
|
|
const light = new THREE.PointLight( 0xffffff, 1, 100 );
|
||
|
|
light.position.set( 0, 10, 4 );
|
||
|
|
light.castShadow = true; // default false
|
||
|
|
scene.add( light );
|
||
|
|
|
||
|
|
//Set up shadow properties for the light
|
||
|
|
light.shadow.mapSize.width = 512; // default
|
||
|
|
light.shadow.mapSize.height = 512; // default
|
||
|
|
light.shadow.camera.near = 0.5; // default
|
||
|
|
light.shadow.camera.far = 500; // default
|
||
|
|
|
||
|
|
//Create a sphere that cast shadows (but does not receive them)
|
||
|
|
const sphereGeometry = new THREE.SphereGeometry( 5, 32, 32 );
|
||
|
|
const sphereMaterial = new THREE.MeshStandardMaterial( { color: 0xff0000 } );
|
||
|
|
const sphere = new THREE.Mesh( sphereGeometry, sphereMaterial );
|
||
|
|
sphere.castShadow = true; //default is false
|
||
|
|
sphere.receiveShadow = false; //default
|
||
|
|
scene.add( sphere );
|
||
|
|
|
||
|
|
//Create a plane that receives shadows (but does not cast them)
|
||
|
|
const planeGeometry = new THREE.PlaneGeometry( 20, 20, 32, 32 );
|
||
|
|
const planeMaterial = new THREE.MeshStandardMaterial( { color: 0x00ff00 } )
|
||
|
|
const plane = new THREE.Mesh( planeGeometry, planeMaterial );
|
||
|
|
plane.receiveShadow = true;
|
||
|
|
scene.add( plane );
|
||
|
|
|
||
|
|
//Create a helper for the shadow camera (optional)
|
||
|
|
const helper = new THREE.CameraHelper( light.shadow.camera );
|
||
|
|
scene.add( helper );
|
||
|
|
</code>
|
||
|
|
|
||
|
|
<h2>Constructor</h2>
|
||
|
|
<h3>[name]( )</h3>
|
||
|
|
<p>
|
||
|
|
Creates a new [name]. This is not intended to be called directly - it is called
|
||
|
|
internally by [page:PointLight].
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>Properties</h2>
|
||
|
|
<p>
|
||
|
|
See the base [page:LightShadow LightShadow] class for common properties.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h3>[property:Boolean isPointLightShadow]</h3>
|
||
|
|
<p>
|
||
|
|
Read-only flag to check if a given object is of type [name].
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>Methods</h2>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
See the base [page:LightShadow LightShadow] class for common methods.
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h3>[method:undefined updateMatrices]( [param:Light light], [param:number viewportIndex])</h3>
|
||
|
|
<p>
|
||
|
|
Update the matrices for the camera and shadow, used internally by the renderer.<br /><br />
|
||
|
|
|
||
|
|
light -- the light for which the shadow is being rendered.<br />
|
||
|
|
viewportIndex -- calculates the matrix for this viewport
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h2>Source</h2>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
[link:https://github.com/mrdoob/three.js/blob/master/src/lights/[name].js src/lights/[name].js]
|
||
|
|
</p>
|
||
|
|
</body>
|
||
|
|
</html>
|