Away3D Forum confused about HitTestRenderer

confused about HitTestRenderer Software: Away3D 4.x

shin10, Newbie Posted: 03 February 2012 03:57 PM Total Posts: 5 Hi guys, I am new to away3d and first steps were very promising but now I am running into troubles. What I try to do is creating lens flares to the sun in my scene. Therefore I would like to know if some object is between my camera and the pivot of my sun. I thought the HitTestRenderer is exactly what I need for this. So I wrote a little class to achieve this but unfortunately it always returns null. What confuses me is that HitTestRenderer is working fine in the Mouse3DManager. I hope you could point out to me what I have been missing. package away3d.core.managers { import away3d.arcane; import away3d.containers.View3D; import away3d.core.render.HitTestRenderer; import away3d.core.base.IRenderable; import away3d.core.traverse.EntityCollector; import flash.geom.Point; use namespace arcane; public class HitTest3DManager { private var _view:View3D; private var _hitTestRenderer:HitTestRenderer; private var _collector:EntityCollector public function HitTest3DManager(view : View3D) { _view = view; _hitTestRenderer = new HitTestRenderer(_view); _collector = _view.entityCollector; } public function getObjectAtPosition(position:Point):IRenderable { _hitTestRenderer.update(position.x / _view.width, position.y / _view.height, _collector); return _hitTestRenderer.hitRenderable; } } } in my main application: `//after away3D init _hitTest = new HitTest3DManager(view); ... // onEnterFrame var pos:Point = view.project(sun.position); trace( _hitTest.getObjectAtPosition(pos) );// always null?!` kind regards Michael
Alexander Seifert, Moderator Posted: 04 February 2012 02:42 PM Total Posts: 129 [ # 1 ] Regarding the Lens Flare ... this is something I always wanted to play around with but never really got to it. How do you do it? =) Cheers! Alex Signature http://www.deltastrike.org
shin10, Newbie Posted: 05 February 2012 03:29 AM Total Posts: 5 [ # 2 ] Hi Alex, right now my code is a mess. Maybe I can find some time tomorrow to clean it up and prepare a little example. Since these are my first two weeks in Away3D (to be honest, in any 3D coding) there might be much better solutions. I am looking forward to your opinion. so long Michael
shin10, Newbie Posted: 05 February 2012 09:48 PM Total Posts: 5 [ # 3 ] Hi, sorry no complete example code but at least I cleaned the two necessary classes. (see the zip file below) It is not completely done yet. I only tested PerspectiveLens & DirectionalLight ... anything else maybe later if it is possible to detect Objects between camera and lightsource. Otherwise it would not make sense anyway. btw: Is there a possibility to create layers or prevent clipping for specified objects/materials or anything like that? Right now I try to set the position as near as possible to the frustrum - could cause display errors. How are you guys handling stuff like that? Layers would be really great, e. g. for HUDs. >> live example (fp ~5MB / 11.2 beta) use the mouseWheel to change the fieldOfView 3 simple steps: embed some bitmaps: [Embed(source="embedded_assets/lensFlares/sunSphere.png")] private var matSunSpehereBitmap:Class; [Embed(source="embedded_assets/lensFlares/flare1.png")] private var matSunFlare1Bitmap:Class; [Embed(source="embedded_assets/lensFlares/flare2.png")] private var matSunFlare2Bitmap:Class; [Embed(source="embedded_assets/lensFlares/flare3.png")] private var matSunFlare3Bitmap:Class; [Embed(source="embedded_assets/lensFlares/flare4.png")] private var matSunFlare4Bitmap:Class; [Embed(source="embedded_assets/lensFlares/flareRing.png")] private var matSunFlareRingBitmap:Class; [Embed(source="embedded_assets/lensFlares/sunGlow.png")] private var matSunGlowBitmap:Class; [Embed(source="embedded_assets/lensFlares/sunStar.png")] private var matSunStarBitmap:Class; [Embed(source="embedded_assets/lensFlares/flareStreak.png")] private var matSunFlareStreakBitmap:Class; initiate the controller (I use about 40 flares): import de.flintfabrik.away3d4.fx.LensFlares.LensFlare3DManager; import de.flintfabrik.away3d4.fx.LensFlares.LensFlare; ... lensFlare3DManager = new LensFlare3DManager(view, sun, directionalLight1.direction); //lens flares lensFlare3DManager.addChild(new LensFlare(new matSunFlare1Bitmap().bitmapData, -0.3 , 1.0)); lensFlare3DManager.addChild(new LensFlare(new matSunFlare2Bitmap().bitmapData, 0.7 , 1.0 )); lensFlare3DManager.addChild(new LensFlare(new matSunFlare3Bitmap().bitmapData, -1.5 , 1.0 )); lensFlare3DManager.addChild(new LensFlare(new matSunFlare4Bitmap().bitmapData, 0.2 , 1.0 )); lensFlare3DManager.addChild(new LensFlare(new matSunFlare1Bitmap().bitmapData, 1.3 , 1.0 )); lensFlare3DManager.addChild(new LensFlare(new matSunFlare2Bitmap().bitmapData, 1.2 , 1.0 )); lensFlare3DManager.addChild(new LensFlare(new matSunFlare3Bitmap().bitmapData, 0.65, 1.0)); lensFlare3DManager.addChild(new LensFlare(new matSunFlare4Bitmap().bitmapData, 0.8 , 1.0 )); lensFlare3DManager.addChild(new LensFlare(new matSunFlareRingBitmap().bitmapData, 1.7 , 1.0 )); //sun lensFlare3DManager.addChild(new LensFlare(new matSunGlowBitmap().bitmapData, 0.0 , 1.0 )); lensFlare3DManager.addChild(new LensFlare(new matSunFlareStreakBitmap().bitmapData, 0.0 , 2.0, .5 )); lensFlare3DManager.addChild(new LensFlare(new matSunStarBitmap().bitmapData, 0.0 , 2.0 )); //extreme lensFlare3DManager.addChild(new LensFlare(new matSunFlare1Bitmap().bitmapData, -50.0 , 10.0)); lensFlare3DManager.addChild(new LensFlare(new matSunGlowBitmap().bitmapData, 50.0 , 10.0)); //additional random lens flares var flareMaps:Array = [ new matSunFlare1Bitmap().bitmapData, new matSunFlare2Bitmap().bitmapData, new matSunFlare3Bitmap().bitmapData, new matSunFlare4Bitmap().bitmapData ]; for (var i:int = 0; i < 20; i++ ) { lensFlare3DManager.addChild( new LensFlare( flareMaps[ Math.floor( Math.random() * flareMaps.length) ], Math.random() * 10 - 2 , Math.random() * 1 + 0.5, Math.random() .25 + .25 ) ); } for (i = 0; i < 10; i++ ) { lensFlare3DManager.addChild( new LensFlare( flareMaps[ Math.floor( Math.random() flareMaps.length) ], Math.random() * 5 + 5 , Math.random() * 3 + 1.5, Math.random() .25 + .25 ) ); } onEnterFrame: `LensFlare3DManager.updateAll();` That is all Regards Michael ps: I killed my apostorphe key - just in case somebody has been wondering. edit: dispose method error fixed File Attachments* lensflare.zip (File Size: 512KB - Downloads: 219)

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