Method onRender

Engine/source/gui/3d/guiTSControl.cpp:455–729

//-----------------------------------------------------------------------------

void GuiTSCtrl::onRender(Point2I offset, const RectI &updateRect)
{
   // Save the current transforms so we can restore
   // it for child control rendering below.
   GFXTransformSaver saver;
   bool renderingToTarget = false;

   mLastCameraQuery.displayDevice = NULL;

   if (!processCameraQuery(&mLastCameraQuery))
   {
      // We have no camera, but render the GUI children 
      // anyway.  This makes editing GuiTSCtrl derived
      // controls easier in the GuiEditor.
      renderChildControls(offset, updateRect);
      return;
   }

   // jamesu - currently a little bit of a hack. Ideally we need to ditch the viewports in the query data and just rely on the display device
   if (mLastCameraQuery.displayDevice)
   {
      if (mRenderStyle == RenderStyleStereoSideBySide)
      {
         mLastCameraQuery.displayDevice->setDrawMode(GFXDevice::RS_StereoSideBySide);
      }
      else if (mRenderStyle == RenderStyleStereoSeparate)
      {
         mLastCameraQuery.displayDevice->setDrawMode(GFXDevice::RS_StereoSeparate);
      }
      else
      {
         mLastCameraQuery.displayDevice->setDrawMode(GFXDevice::RS_Standard);
      }

      // The connection's display device may want to set the eye offset
      if (mLastCameraQuery.displayDevice->providesEyeOffsets())
      {
         mLastCameraQuery.displayDevice->getEyeOffsets(mLastCameraQuery.eyeOffset);
      }

      // Grab field of view for both eyes
      if (mLastCameraQuery.displayDevice->providesFovPorts())
      {
         mLastCameraQuery.displayDevice->getFovPorts(mLastCameraQuery.fovPort);
         mLastCameraQuery.hasFovPort = true;
      }

      mLastCameraQuery.displayDevice->getStereoViewports(mLastCameraQuery.stereoViewports);
      mLastCameraQuery.displayDevice->getStereoTargets(mLastCameraQuery.stereoTargets);

      mLastCameraQuery.hasStereoTargets = mLastCameraQuery.stereoTargets[0];
   }

   GFXTargetRef origTarget = GFX->getActiveRenderTarget();
   U32 origStyle = GFX->getCurrentRenderStyle();

   // Set up the appropriate render style
   Point2I renderSize = getExtent();