| Server IP : 210.245.233.93 / Your IP : 216.73.216.226 Web Server : Apache/2.2.15 (CentOS) System : Linux webserver2.onesolution.com.hk 2.6.32-754.35.1.el6.x86_64 #1 SMP Sat Nov 7 12:42:14 UTC 2020 x86_64 User : apache ( 48) PHP Version : 5.3.3 Disable Function : exec, shell_exec, system, passthru, popen, proc_open, pcntl_exec MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /var/www/hkosl.com/3dweb/src/lights/ |
Upload File : |
import { Light } from './Light.js';
import { PointLightShadow } from './PointLightShadow.js';
/**
* @author mrdoob / http://mrdoob.com/
*/
function PointLight( color, intensity, distance, decay ) {
Light.call( this, color, intensity );
this.type = 'PointLight';
Object.defineProperty( this, 'power', {
get: function () {
// intensity = power per solid angle.
// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
return this.intensity * 4 * Math.PI;
},
set: function ( power ) {
// intensity = power per solid angle.
// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
this.intensity = power / ( 4 * Math.PI );
}
} );
this.distance = ( distance !== undefined ) ? distance : 0;
this.decay = ( decay !== undefined ) ? decay : 1; // for physically correct lights, should be 2.
this.shadow = new PointLightShadow();
}
PointLight.prototype = Object.assign( Object.create( Light.prototype ), {
constructor: PointLight,
isPointLight: true,
copy: function ( source ) {
Light.prototype.copy.call( this, source );
this.distance = source.distance;
this.decay = source.decay;
this.shadow = source.shadow.clone();
return this;
}
} );
export { PointLight };