For Spotlight. What is the correct way to update the near/far clip planes

dugla · April 8, 2019, 8:42pm

For potLight, there does not appear to be anyway to update the near/far clip planes.

My code.
A class that wraps SpotLight and DropShadow functionality:

gist.github.com

https://gist.github.com/turner/5db8957fe0a3daa927b6fcf073517b71

spotLightDropShadow.js

import * as THREE from './threejs_es6/three.module.js';

class SpotLightDropShadow {
    constructor({ color, intensity, shadowSize, near, far, doShowHelper}) {

        let spotLight = new THREE.SpotLight( color, intensity );

        spotLight.castShadow = true;

        spotLight.shadow.mapSize.width = shadowSize;

This file has been truncated. show original

The relevant portion of my app that updates near/far:

gist.github.com

https://gist.github.com/turner/443e44feb30077d566f71811e531b3f2

helloSpotloght.js



        let spotlight = new SpotLightDropShadow({ color: appleCrayonColorThreeJS('snow'), intensity: 1.5, shadowSize: 1024, near: 0.8e3, far: 3.0e3, doShowHelper: true });
        spotlight.addToScene(scene);

        const near = 1e3;
        const  far = 2e3;
        spotlight.pose({ position: new THREE.Vector3(-400, 1500, -400), target: new THREE.Vector3(-400, 0, -400), near, far });

Thanks.

Mugen87 · April 9, 2019, 9:38am

The projection matrix of the shadow camera is automatically computed by the renderer. It’s sufficient to just update the values.

Mugen87 · April 9, 2019, 9:43am

/cc

dugla · April 9, 2019, 1:14pm

Oh, I like that! Brilliant! Perhaps it can be added as an example to a future release. Cheers.

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For Spotlight. What is the correct way to update the near/far clip planes

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