Away3D Forum animate light with tweenmax

animate light with tweenmax Software: Away3D 4.x

Colir, Newbie Posted: 29 November 2011 11:47 AM Total Posts: 21 Hi, i’ve a newbie issue… I don’t understand how to move a light position with tweenmax. i use some thing like this : `directLight = new DirectionalLight(-1, -1, 1); directLight.color = 0xFFFFFF; directLight.x = -15000; directLight.y = -15000; directLight.z = -15000; view.scene.addChild(directLight); TweenMax.to(directLight,3,{x:"-2000",repeat:-1,yoyo:true})` but nothing append…my light is still fix… i’ve also try with a point light with the same result… can you help me please? thanks
John Brookes, Moderator Posted: 29 November 2011 12:41 PM Total Posts: 732 [ # 1 ] A directional light shines from every world position in the direction you set. So just moving its position will not change the apperance of the light. You need to also update the lights direction. (direction just sets a lookAt position for the light) eg in render loop yourDirectionalLight.lookAt(new Vector3D())
Colir, Newbie Posted: 30 November 2011 04:15 PM Total Posts: 21 [ # 2 ] Yes this just normal ! But what about the point light ? My goal is to turn a light around a model with tweenmax… thanks
Colir, Newbie Posted: 30 November 2011 05:29 PM Total Posts: 21 [ # 3 ] well…i’m so sorry…all work fine…point light and directional light i’m feel so stupid… just one thing that doesn’t work as i except : For directionnal light, i must tween a Vector3d object value, and assign this object on each render frame `directLightDirection = new Vector3D(0,0,0) TweenMax.to(directLightDirection, 3, {bezierThrough:[{x:-15000, z:-15000}, {x:-15000, z:15000}, {x:15000, z:15000}, {x:15000, z:-15000}],repeat:-1, ease:Linear.easeNone}); private function render(evt:Event):void{ directLight.direction = directLightDirection view.render(); }` this work fine ! i ‘ve also try to manipulate directly the direction but without effect, the light is not update `directLight.direction = new Vector3D(0,0,0) TweenMax.to(directLight.direction, 3, {bezierThrough:[{x:-15000, z:-15000}, {x:-15000, z:15000}, {x:15000, z:15000}, {x:15000, z:-15000}],repeat:-1, ease:Linear.easeNone});` This doesn’ t work ! i don’t understand why Is that normal ? ps: A little complementary question : how to add a debugg box around a light ? thanks again
John Brookes, Moderator Posted: 30 November 2011 06:41 PM Total Posts: 732 [ # 4 ] It needs to update `private function movelight(e:MouseEvent):void { directLightDirection = new Vector3D(0, 0, 0); TweenMax.to(directLightDirection, 30, {bezierThrough:[{x:-15000, z:15000}, {x:15000, z:15000}, {x:15000, z:-15000}],repeat:-1, ease:Linear.easeNone, onUpdate:updateMyDirectionalLight}); } private function updateMyDirectionalLight():void { myDirectionalLight.direction = directLightDirection }` Could just as easily do `TweenMax.to(myDirectionalLight, 30, {rotationY:"360" } );` For debug I usually add a sphere to the point lights and tridents for directional.
Colir, Newbie Posted: 01 December 2011 09:40 AM Total Posts: 21 [ # 5 ] feel so stupid again… thanks a lot for your help !

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