Radegast.Rendering.SceneWindow.MainRenderLoop C# (CSharp) Method

        private void MainRenderLoop()
        {
            if (!RenderingEnabled) return;
            lastFrameTime = (float)renderTimer.Elapsed.TotalSeconds;

            // Something went horribly wrong
            if (lastFrameTime < 0) return;

            // Stopwatch loses resolution if it runs for a long time, reset it
            renderTimer.Reset();
            renderTimer.Start();

            // Determine if we need to throttle frame rate
            bool throttle = false;

            // Some other app has focus
            if (Form.ActiveForm == null)
            {
                throttle = true;
            }
            else
            {
                // If we're docked but not active tab, throttle
                if (!this.RadegastTab.Selected && !this.RadegastTab.Detached)
                {
                    throttle = true;
                }
            }

            // Limit FPS to max 15
            if (throttle)
            {
                int msToSleep = 66 - ((int)(lastFrameTime / 1000));
                if (msToSleep < 10) msToSleep = 10;
                Thread.Sleep(msToSleep);
            }

            Render(false);

            glControl.SwapBuffers();
        }