c# - Enable and disable Renderer or Canvas not working -

every 5 seconds need take photo , display in world. part working fine. once photo taken need disappear 1 second after. that's i'm stuck. i've gotten disappear cant new picture reappear when function called again.

any ideas?

i've tried:

m_canvasrenderer.enabled = false; m_canvasrenderer.enabled = true; m_canvas = null; m_canvas.setactive(false); m_canvas.setactive(true); 

with no luck

    public class photocaptureexample : monobehaviour {     gesturerecognizer m_gesturerecognizer;     gameobject m_canvas = null;     renderer m_canvasrenderer = null;     photocapture m_photocaptureobj;     cameraparameters m_cameraparameters;     bool m_capturingphoto = false;     texture2d m_texture = null;      void start()     {         initialize();         invokerepeating("takephoto", 5.0f, 5.0f);         //startcoroutine(takephoto());     }  void takephoto()     {         if (m_capturingphoto)         {             return;         }         m_capturingphoto = true;         m_photocaptureobj.takephotoasync(onphotocaptured);     }      void onphotocaptured(photocapture.photocaptureresult result, photocaptureframe photocaptureframe)     {        // m_canvasrenderer.enabled = true;          if (m_canvas == null)         {              m_canvas = gameobject.createprimitive(primitivetype.quad);             m_canvas.name = "photocapturecanvas";             m_canvasrenderer = m_canvas.getcomponent<renderer>() renderer;             m_canvasrenderer.material = new material(shader.find("ar/holographicimageblend"));         }          matrix4x4 cameratoworldmatrix;         photocaptureframe.trygetcameratoworldmatrix(out cameratoworldmatrix);         matrix4x4 worldtocameramatrix = cameratoworldmatrix.inverse;          matrix4x4 projectionmatrix;         photocaptureframe.trygetprojectionmatrix(out projectionmatrix);          photocaptureframe.uploadimagedatatotexture(m_texture);         m_texture.wrapmode = texturewrapmode.clamp;          m_canvasrenderer.sharedmaterial.settexture("_maintex", m_texture);         m_canvasrenderer.sharedmaterial.setmatrix("_worldtocameramatrix", worldtocameramatrix);         m_canvasrenderer.sharedmaterial.setmatrix("_cameraprojectionmatrix", projectionmatrix);         m_canvasrenderer.sharedmaterial.setfloat("_vignettescale", 1.0f);          // position canvas object in front         // of real world web camera.         vector3 position = cameratoworldmatrix.getcolumn(3) - cameratoworldmatrix.getcolumn(2);          // rotate canvas object faces user.         quaternion rotation = quaternion.lookrotation(-cameratoworldmatrix.getcolumn(2), cameratoworldmatrix.getcolumn(1));          m_canvas.transform.position = position;         m_canvas.transform.rotation = rotation;          m_capturingphoto = false;          float counter = 0; float target = 1;         while (counter < target)         {             counter += time.deltatime;         }         // m_canvasrenderer.enabled = false;      } }