ios - SceneKit Optimization -

ios - SceneKit Optimization -

i want display same scngeometry 1000 times, specific animation (eg scnactions rotation, movement,...) , different image diffuse material.

after checking documentation , nice wwdc presentations, best method found create 1 node (so called 1000 times)

//self scnnode //helper.getstar3d() scnnode template has been flattened //the geometry lite (36 triangles according scenekit statistic) //need re-create geometry , material not shared nodes self.geometry=helper.getstar3d().geometry.copy() scngeometry self.geometry.firstmaterial = helper.getstar3d().geometry.firstmaterial.copy() scnmaterial // texture has been extracted sktextureatlas self.geometry.firstmaterial.diffuse.contents=alltextures.firstobject sktexture

however on ipad air i'm reaching 40fps (and 27 fps when animating texture via scnaction block update firstmaterial.diffuse.contents )

i thought using sktextureatlas (so images on same texture) , utilize same geometry (apparently when re-create geometry, info shared - cf building game scenekit), more fps because should allow opengl optimization. tried play lot of parameters of scenekit no success.

for notice: scenekit statistics tells there 1000 draw calls, , graphics stats in xcode :cpu 18ms, gpu 22ms, tiler 18%, renderer 80%, device 88% (can't wait new scenekit statistics module in xcode!)

so question : think it's normal performance or there way optimize want in scenekit? thanks!

edit: sktextureatlas not seems optimize rendering seems cut down frame rate. if utilize uiimage instead of sktexture coming sktextureatlas, i've got 25% improvement (50fps). animating texture (updating texture of each object each 0.2 seconds) killing performance (20fps) using sktextureatlas or uiimages. think i'm missing here because sktextureatlas used optimization.

ios scenekit