Method Render

Rendering/Parallel/vtkClientServerCompositePass.cxx:48–105

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//------------------------------------------------------------------------------
void vtkClientServerCompositePass::Render(const vtkRenderState* s)
{
  if (!this->ServerSideRendering || this->ProcessIsServer)
  {
    if (this->RenderPass)
    {
      this->RenderPass->Render(s);
    }
    else
    {
      vtkWarningMacro("No render pass set.");
    }
  }

  if (this->ServerSideRendering)
  {
    if (!this->Controller)
    {
      vtkErrorMacro("Cannot do remote rendering with a controller.");
    }
    else if (this->ProcessIsServer)
    {
      // server.
      vtkSynchronizedRenderers::vtkRawImage rawImage;
      rawImage.Capture(s->GetRenderer());
      int header[4];
      header[0] = rawImage.IsValid() ? 1 : 0;
      header[1] = rawImage.GetWidth();
      header[2] = rawImage.GetHeight();
      header[3] = rawImage.IsValid() ? rawImage.GetRawPtr()->GetNumberOfComponents() : 0;
      // send the image to the client.
      this->Controller->Send(header, 4, 1, 0x023430);
      if (rawImage.IsValid())
      {
        this->Controller->Send(rawImage.GetRawPtr(), 1, 0x023430);
      }
    }
    else
    {
      // client.
      vtkSynchronizedRenderers::vtkRawImage rawImage;
      int header[4];
      this->Controller->Receive(header, 4, 1, 0x023430);
      if (header[0] > 0)
      {
        rawImage.Resize(header[1], header[2], header[3]);
        this->Controller->Receive(rawImage.GetRawPtr(), 1, 0x023430);
        rawImage.MarkValid();
      }
      rawImage.PushToViewport(s->GetRenderer());
    }
  }

  if (this->PostProcessingRenderPass)
  {
    this->PostProcessingRenderPass->Render(s);
  }
}