glam/es5/lib/light/directional/update.js

Experimental WebGL Engine

'use strict';

Object.defineProperty(exports, "__esModule", {
	value: true
});
exports.default = updateLight;

var _normalize = require('gl-vec3/normalize');

var _normalize2 = _interopRequireDefault(_normalize);

var _copy = require('gl-vec3/copy');

var _copy2 = _interopRequireDefault(_copy);

var _updateScaleless = require('../../transform/update-scaleless');

var _updateScaleless2 = _interopRequireDefault(_updateScaleless);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function updateLight(light, previous, shader) {

	// TODO - Re-evaluate this approach
	if (light.flags.autoNormalizeDirection && (previous.direction[0] !== light.direction[0] || previous.direction[1] !== light.direction[1] || previous.direction[2] !== light.direction[2])) {
		(0, _normalize2.default)(light.direction, light.direction);
		(0, _copy2.default)(previous.direction, light.direction);
	}

	(0, _updateScaleless2.default)(light.transform);
}