docs: void onDrawEye(int eye, int swapChainIndex, boolean use_multiview) {
          mCurrentEye = eye;
          if (!(mSensoredScene == null || !mMainScene.equals(mSensoredScene))) {
              GVRCameraRig mainCameraRig = mMainScene.getMainCameraRig();
  
              if (use_multiview) {
  
                  if (DEBUG_STATS) {
                      mTracerDrawEyes1.enter(); // this eye is drawn first
                      mTracerDrawEyes2.enter();
                  }
                   GVRRenderTarget renderTarget = mRenderBundle.getRenderTarget(EYE.MULTIVIEW, swapChainIndex);
                   GVRCamera camera = mMainScene.getMainCameraRig().getCenterCamera();
                   GVRCamera left_camera = mMainScene.getMainCameraRig().getLeftCamera();
                   renderTarget.cullFromCamera(mMainScene, camera,mRenderBundle.getShaderManager());
  
                  captureCenterEye(renderTarget, true);
                  capture3DScreenShot(renderTarget, true);
  
                  renderTarget.render(mMainScene, left_camera, mRenderBundle.getShaderManager(),mRenderBundle.getPostEffectRenderTextureA(),
                          mRenderBundle.getPostEffectRenderTextureB());
  
                  captureRightEye(renderTarget, true);
                  captureLeftEye(renderTarget, true);
  
                  captureFinish();
  
                  if (DEBUG_STATS) {
                      mTracerDrawEyes1.leave();
                      mTracerDrawEyes2.leave();
                  }
  
  
              } else {
  
                  if (eye == 1) {
                      if (DEBUG_STATS) {
                          mTracerDrawEyes1.enter();
                      }
  
                       GVRCamera rightCamera = mainCameraRig.getRightCamera();
                       GVRRenderTarget renderTarget = mRenderBundle.getRenderTarget(EYE.RIGHT, swapChainIndex);
                       renderTarget.render(mMainScene, rightCamera, mRenderBundle.getShaderManager(), mRenderBundle.getPostEffectRenderTextureA(),
                               mRenderBundle.getPostEffectRenderTextureB());
                      captureRightEye(renderTarget, false);
  
                      captureFinish();
                      if (DEBUG_STATS) {
                          mTracerDrawEyes1.leave();
                          mTracerDrawEyes.leave();
                      }
                  } else {
                      if (DEBUG_STATS) {
                          mTracerDrawEyes1.leave();
                          mTracerDrawEyes.leave();
                      }
  
  
                      GVRRenderTarget renderTarget = mRenderBundle.getRenderTarget(EYE.LEFT, swapChainIndex);
                      GVRCamera leftCamera = mainCameraRig.getLeftCamera();
  
                      capture3DScreenShot(renderTarget, false);
  
                      renderTarget.cullFromCamera(mMainScene, mainCameraRig.getCenterCamera(), mRenderBundle.getShaderManager());
                      captureCenterEye(renderTarget, false);
                      renderTarget.render(mMainScene, leftCamera, mRenderBundle.getShaderManager(), mRenderBundle.getPostEffectRenderTextureA(), mRenderBundle.getPostEffectRenderTextureB());
  
                      captureLeftEye(renderTarget, false);
  
                      if (DEBUG_STATS) {
                          mTracerDrawEyes2.leave();
                      }
                  }
               }
          }
      }