ios - overlaySKScene not rendered when using SCNRenderer -

i'm using scnrenderer render scene existing opengl context (basically modified version of vuforia imagetarget sample) , overlayskscene show annotations objects in scene.

since update ios 9 overlayskscene no longer rendered. none of per frame actions (update:, didevaluateactions, ...) being called.

it worked ios 8 , same skscene still works scnview in different view controller in same app.

context setup:

self.context = [[eaglcontext alloc] initwithapi:context.api sharegroup:scnviewcontext.sharegroup]; 

opengl initialitaion (mostly copied vuforia sample):

- (void)createframebuffer {     if (self.context) {         // create default framebuffer object         glgenframebuffers(1, &_defaultframebuffer);         glbindframebuffer(gl_framebuffer, self.defaultframebuffer);          // create colour renderbuffer , allocate backing store         glgenrenderbuffers(1, &_colorrenderbuffer);         glbindrenderbuffer(gl_renderbuffer, self.colorrenderbuffer);          // allocate renderbuffer's storage (shared drawable object)         [self.context renderbufferstorage:gl_renderbuffer fromdrawable:(caeagllayer*)self.layer];         glint framebufferwidth;         glint framebufferheight;         glgetrenderbufferparameteriv(gl_renderbuffer, gl_renderbuffer_width, &framebufferwidth);         glgetrenderbufferparameteriv(gl_renderbuffer, gl_renderbuffer_height, &framebufferheight);          // create depth render buffer , allocate storage         glgenrenderbuffers(1, &_depthrenderbuffer);         glbindrenderbuffer(gl_renderbuffer, self.depthrenderbuffer);         glrenderbufferstorage(gl_renderbuffer, gl_depth_component16, framebufferwidth, framebufferheight);          // attach colour , depth render buffers frame buffer         glframebufferrenderbuffer(gl_framebuffer, gl_color_attachment0, gl_renderbuffer, self.colorrenderbuffer);         glframebufferrenderbuffer(gl_framebuffer, gl_depth_attachment, gl_renderbuffer, self.depthrenderbuffer);         glframebufferrenderbuffer(gl_framebuffer, gl_stencil_attachment, gl_renderbuffer, self.stencilrenderbuffer);          // leave colour render buffer bound future rendering operations act on         glbindrenderbuffer(gl_renderbuffer, self.colorrenderbuffer);     } }  - (void)setframebuffer{     // eaglcontext must set each thread wishes use it.  set     // first time method called (on render thread)     if (self.context != [eaglcontext currentcontext]) {         [eaglcontext setcurrentcontext:self.context];     }      if (!self.defaultframebuffer) {         // perform on main thread ensure safe memory allocation         // shared buffer.  block until operation complete prevent         // simultaneous access opengl context         [self performselectoronmainthread:@selector(createframebuffer) withobject:self waituntildone:yes];     }      glbindframebuffer(gl_framebuffer, self.defaultframebuffer); }  - (bool)presentframebuffer {     // setframebuffer must have been called before presentframebuffer, therefore     // know context valid , has been set (render) thread      // bind colour render buffer , present     glbindrenderbuffer(gl_renderbuffer, self.colorrenderbuffer);      return [self.context presentrenderbuffer:gl_renderbuffer]; } 

scnrenderer setup:

self.skscene = [[markeroverlayscene alloc] initwithsize:cgsizemake(2048, 2048)];  self.renderer = [scnrenderer rendererwithcontext:self.context options:nil]; self.renderer.autoenablesdefaultlighting = no; self.renderer.delegate = self; self.renderer.overlayskscene = self.skscene; self.renderer.playing = yes;  if (self.sceneurl) {     self.renderer.scene = [scnscene scenewithurl:self.sceneurl options:nil error:nil];      [self.renderer prepareobjects:@[self.renderer.scene] withcompletionhandler:^(bool success) {     }]; } 

vuforia render callback:

- (void)renderframeqcar {     [self setframebuffer];      // clear colour , depth buffers     glclear(gl_color_buffer_bit | gl_depth_buffer_bit | gl_stencil_buffer_bit);      // render video background , retrieve tracking state     qcar::state state = qcar::renderer::getinstance().begin();     qcar::renderer::getinstance().drawvideobackground();      glenable(gl_depth_test);     glenable(gl_cull_face);      glcullface(gl_back);     if(qcar::renderer::getinstance().getvideobackgroundconfig().mreflection == qcar::video_background_reflection_on) {         glfrontface(gl_cw);  //front camera     } else {         glfrontface(gl_ccw);   //back camera     }      (int = 0; < state.getnumtrackableresults(); ++i) {         // trackable         const qcar::trackableresult* result = state.gettrackableresult(i);          qcar::matrix44f modelviewmatrix = qcar::tool::convertpose2glmatrix(result->getpose());          scnmatrix4 matrix = [self convertarmatrix:modelviewmatrix];         matrix = scnmatrix4mult(scnmatrix4makerotation(m_pi_2, 1, 0, 0), matrix);         matrix = scnmatrix4mult(scnmatrix4makescale(10, 10, 10), matrix);          self.artransform = matrix;     }      if (state.getnumtrackableresults() == 0) {         self.artransform = scnmatrix4identity;     }      [self.renderer renderattime:cfabsolutetimegetcurrent() - self.starttime];      gldisable(gl_depth_test);     gldisable(gl_cull_face);      qcar::renderer::getinstance().end();     [self presentframebuffer]; } 

mess skscene. settings. when switched ios9 no touches getting through. had add skscene.userinteractionenabled = no; not needed in ios8. guess defaults have changed or setting overlay no longer changes defaults.

regardless, issue skscene settings.