I guess you are having those problems trying to spawn new sprite instances
frequently ? Try reusing them
On Tue, Jun 14, 2011 at 7:33 AM, Jahiro <macro.mar...@gmail.com> wrote:
> Hi Fabrice,
>
> I'd like use the Merge class on a group of Sprite3Ds, is that
> possible? It looks like the Merge class only deals with Meshes, and
> Sprite3D doesn't extend Mesh.
>
> I'm struggling with performance issues having lots of Sprite3Ds on the
> stage at one time - would be great if I could fix it with the Merge
> class.
>
> Any ideas?
>
> Thanks
>
> On May 27, 12:25 am, Fabrice3D <fabric...@gmail.com> wrote:
> > Hi all,
> > Merge class is updated (in Git repo)
> > various issues were fixed and lots of enhancement/rewriting was done.
> >
> > in big lines what is now different with previous version:
> >
> > 1:
> > constructor has changed, the first param "objectspace" is now the third
> param.
> > simply because in 99% of cases, you do not need object space
> >
> > so where you did say, new Merge(false, true, true); , you can update your
> code by just getting rid of first param as its by default false
> > becomes --> new Merge(true, true);
> >
> > 2:
> > Added new method, as I've seen already several cases where you were
> merging during a loop.
> > public function applyToMeshes(receiver:Mesh, meshes:Vector.<Mesh>):Mesh
> > (see first snippet example)
> >
> > 3:
> > it takes now in account, scale, and rotations of the to be merged items,
> but also respects reciever rotations and scale.
> > It is faster and uses less resource than previous version
> > It supports now also cloned meshes inputs and even empty mesh (new
> Mesh()) as receiver
> >
> > merging multiple meshes
> > if you merge for instance from a loaded model or if you loop to generate
> a merged mesh
> > do not use "apply", instead, use "applyToMeshes" or "applyToContainer"
> > apply would work but would ask way more processing time.
> >
> > A few examples with few variations in use. Covering probably most of your
> possible cases.
> >
> > merge.applyToMeshes
> > private function mergeUsingVectors() : void
> > {
> > var iteration : uint = 20;
> > var increase : Number = 200;
> > var offset:Number = -((increase *iteration) *.5);
> >
> > var merge:Merge = new Merge(false, false);
> >
> > var bmd:BitmapData = new
> BitmapData(64,64,false,0xFF00FF);
> > var mat:BitmapMaterial = new
> BitmapMaterial(bmd,true,false,true);
> > mat.lights = [_light1, _light2];
> >
> > var sphere : Sphere;
> > var sphereReceiver : Sphere;
> >
> > var meshes:Vector.<Mesh> = new Vector.<Mesh>();
> > var i:uint;
> > var scaleIncrease:Number = .1;
> > var nscale:Number = 0.2;
> > for (i = 0;i < iteration; ++i) {
> > sphere = new Sphere(mat, 100*nscale, 6,
> 6);
> > sphere.x = offset + (i*increase);
> > sphere.y = Math.sin(sphere.x)*100;
> > meshes.push(Mesh(sphere));
> >
> > nscale+=scaleIncrease;
> > }
> >
> >
> _view.scene.addChild(merge.applyToMeshes(Mesh(meshes.shift()), meshes));
> > }
> >
> > merge.applyToContainer
> > in this case we loop, but this could be your loaded model (make sure if
> your model have more material to set keepMaterial to true)
> >
> > private function mergeWithContainer() : void
> > {
> > var _rows : Number = 8;
> > var _space : Number = 250;
> > var _radius : Number = 200;
> >
> > var merge:Merge = new Merge(false,true);
> >
> > var sphere : Sphere;
> > var container:ObjectContainer3D = new
> ObjectContainer3D();
> >
> > var z:uint;
> > var y:uint;
> > var x:uint;
> > for (z = 0;z < _rows; ++z) {
> > for (y= 0;y < _rows;++y) {
> > for (x = 0;x < _rows;++x) {
> > sphere = new Sphere(null,
> _radius, 6, 6, true );
> > sphere.x =
> -(_rows*(_radius+_space)*0.5) + x * _radius * 2 + (x*_space);
> > sphere.y =
> -(_rows*(_radius+_space)*0.5) + y * _radius * 2 + (y*_space);
> > sphere.z =
> -(_rows*(_radius+_space)*0.5) + z * _radius * 2 + (z*_space);
> >
> container.addChild(sphere);
> > }
> > }
> > }
> >
> > var mergedMesh:Mesh =
> merge.applyToContainer(container, "myMergedMesh");
> >
> > var bmd:BitmapData = new
> BitmapData(64,64,false,0xFF00FF);
> > var mat:BitmapMaterial = new
> BitmapMaterial(bmd,true,false,true);
> > mat.lights = [_light1, _light2];
> >
> > mergedMesh.material = mat;
> > _view.scene.addChild(mergedMesh);
> > }
> >
> > merge.apply
> > in this case, notice that the scale and rotations of originals are
> respected, if you compare with the green non merged cubes placed right
> above.
> >
> > private function singleMerge() : void
> > {
> > //we want to keep the materials different and
> clear the source
> > var merge:Merge = new Merge(true, true);
> >
> > var matcube:BitmapMaterial = new
> BitmapMaterial(new BitmapData(256,256, false, 0xFF0000));
> > var matcube1:BitmapMaterial = new
> BitmapMaterial(new BitmapData(256,256, false, 0x0000FF));
> > matcube.lights = [_light1, _light2];
> > matcube1.lights = [_light1, _light2];
> >
> > var cube1:Cube = new Cube(matcube, 800, 400,
> 100);
> > var cube2:Cube = new Cube(matcube1, 800, 400,
> 100);
> >
> > cube1.x = 600;
> > cube2.x = -600;
> > cube1.z = cube2.z = 0;
> > cube1.y = cube2.y = 0;
> >
> > //here an example where the reciever as scale and
> rotations
> > cube1.rotationY = -45;
> > cube2.rotationY = 45;
> >
> > cube1.scaleY = 2;
> > cube2.scaleY = 2;
> >
> > merge.apply(cube1, cube2);
> > _view.scene.addChild(cube1);
> >
> > // the same settings but higher on y not merge to
> check results, shown here in green
> > var matcube2:BitmapMaterial = new
> BitmapMaterial(new BitmapData(256,256, false, 0x00FF00));
> > matcube2.lights = [_light1, _light2];
> > var cube3:Cube = new Cube(matcube2, 800, 400,
> 100);
> > var cube4:Cube = new Cube(matcube2, 800, 400,
> 100);
> >
> > cube3.x = 600;
> > cube4.x = -600;
> > cube3.z = cube4.z = 0;
> > cube3.y = cube4.y = 800;
> >
> > cube3.rotationY = -45;
> > cube4.rotationY = 45;
> >
> > cube3.scaleY = 2;
> > cube4.scaleY = 2;
> >
> > _view.scene.addChild(cube3);
> > _view.scene.addChild(cube4);
> >
> > }
> >
> > example of empty reciever and the use of clones
> > private function mergeWithClones() : void
> > {
> > var merge:Merge = new Merge(true, true);
>
> > var matcube:BitmapMaterial = new
> BitmapMaterial(new BitmapData(256,256, false, 0xFF0000));
> > matcube.lights = [_light1, _light2];
> >
> > var cube:Cube = new Cube(matcube, 800, 400, 100);
> > var meshes:Vector.<Mesh> = new Vector.<Mesh>();
> >
> > //empty mesh reciever
> > var receiver:Mesh = new Mesh();
> > var cubeclone:Mesh;
> >
> > var i:uint;
> > var iteration : uint = 20;
> > var increase : Number = 200;
> > var offset:Number = -((increase *iteration) *.5);
> >
> > for (i = 0;i < iteration; ++i) {
> > cubeclone = cube.clone() as Mesh;
> > cubeclone.x = offset + (i*increase);
> > cubeclone.y = i*50;
> > meshes.push(cubeclone);
> > }
> >
> _view.scene.addChild(merge.applyToMeshes(receiver, meshes));
> > cube = null;
> > }
> >
> > I'll add soon these in the examples section.
> >
> > cheers,
> > Fabrice
>
--
Michael Ivanov ,Programmer
Neurotech Solutions Ltd.
Flex|Air |3D|Unity|
www.neurotechresearch.com
http://blog.alladvanced.net
Tel:054-4962254
mich...@neurotech.co.il
t...@neurotech.co.il
