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Low altitude camera earth enlightening.

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This commit is contained in:
Zemledelec 2016-10-29 12:02:40 +03:00
parent 9e02131b55
commit 9984caa5c1
2 changed files with 37 additions and 3 deletions
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31
src/og/control/sun.js
View File

@ -49,6 +49,8 @@ og.control.Sun = function (options) {
* @type {Number}
*/
this._prevDate = 0;
this._lightOn = false;
};
og.inheritance.extend(og.control.Sun, og.control.BaseControl);
@ -81,9 +83,32 @@ og.control.Sun.prototype._draw = function () {
this._currDate = this.renderer.handler.clock.currentDate;
if (Math.abs(this._currDate - this._prevDate) > 0.00034 && this.active) {
this._prevDate = this._currDate;
this.sunlight.setPosition(og.astro.earth.getSunPosition(this._currDate));
if (this.renderer.activeCamera.getHeight() < 3923410) {
this._lightOn = true;
this._f = 1;
if (this._k >= 0) {
this._k -= 0.01;
var rot = og.math.Quaternion.getRotationBetweenVectors(this.sunlight._position.normal(), this.renderer.activeCamera.eye.normal());
var r = rot.slerp(og.math.Quaternion.IDENTITY, this._k).normalize();
this.sunlight.setPosition(r.mulVec3(this.sunlight._position));
} else {
this.sunlight.setPosition(this.renderer.activeCamera.eye.scaleTo(149600000000));
}
} else {
this._k = 1;
if (this._f >= 0) {
this._f -= 0.01;
var rot = og.math.Quaternion.getRotationBetweenVectors(this.sunlight._position.normal(), og.astro.earth.getSunPosition(this._currDate).normal());
var r = rot.slerp(og.math.Quaternion.IDENTITY, this._f).normalize();
this.sunlight.setPosition(r.mulVec3(this.sunlight._position));
} else {
if (Math.abs(this._currDate - this._prevDate) > 0.00034 && this.active || this._lightOn) {
this._lightOn = false;
this._prevDate = this._currDate;
this.sunlight.setPosition(og.astro.earth.getSunPosition(this._currDate));
this._f = 0;
}
}
}
};

9
src/og/light/lightSource.js
View File

@ -164,6 +164,15 @@ og.LightSource.prototype.setPosition = function (position) {
return this;
};
/**
* Returns light source position, or if it is a directional type sets light direction vector.
* @public
* @returns {og.math.Vector3} - Light source position/direction.
*/
og.LightSource.prototype.getPosition = function () {
return this._position.clone();
};
/**
* Set ambient color.
* @public