Method OnDrawFrame

deps/LLGL/examples/Cpp/Queries/Example.cpp:282–323

    }

    void OnDrawFrame() override
    {
        UpdateScene();

        commands->Begin();
        {
            // Measure GPU performance
            commands->BeginQuery(*timerQuery);
            {
                // Set buffers
                commands->SetVertexBuffer(*vertexBuffer);

                // Start with qeometry query
                commands->BeginQuery(*geometryQuery);
                {
                    commands->SetViewport(LLGL::Viewport{ { 0, 0 }, context->GetResolution() });

                    commands->BeginRenderPass(*context);
                    {
                        RenderBoundingBoxes();
                        RenderScene();
                    }
                    commands->EndRenderPass();
                }
                commands->EndQuery(*geometryQuery);
            }
            commands->EndQuery(*timerQuery);
        }
        commands->End();
        commandQueue->Submit(*commands);

        // Print query results every couple of milliseconds
        auto currentTime = Clock::now();
        if (std::chrono::duration_cast<Ticks>(currentTime - prevPrintTime).count() >= printRefreshRate)
        {
            prevPrintTime = currentTime;
            PrintQueryResults();
        }

        // Present result on the screen
        context->Present();
    }

};