private void RenderLoop()
{
while (_isRendering)
{
_gameTime.BeginUpdate();
_controller.Update(_gameTime);
foreach (IGameObject gameObject in _gameObjects)
{
gameObject.Update(_gameTime, _controller);
}
CastRays(_gameTime);
float maxIntensity = 25f;
for (int r = 0; r < CellRows; r++)
{
for (int c = 0; c < CellCols; c++)
{
float cappedIntensity = Math.Min(_grid[r, c].Intensity / maxIntensity, 1);
float logIntensity = (float)Math.Log(100 * cappedIntensity + 1, 100);
float smoothedIntensity = Lerp(_smoothedIntensities[r, c], logIntensity, 0.25f);
_smoothedIntensities[r, c] = Math.Max(smoothedIntensity, 0.035f);
}
}
_gameTime.StartEvent("Shading");
using (Graphics graphics = Graphics.FromImage(_background))
{
graphics.PixelOffsetMode = PixelOffsetMode.HighSpeed;
graphics.InterpolationMode = InterpolationMode.NearestNeighbor;
graphics.CompositingQuality = CompositingQuality.HighSpeed;
graphics.Clear(Color.Black);
graphics.FillRectangle(_caveBrush, 0, 0, 1280, 720);
foreach (IGameObject gameObject in _gameObjects)
{
gameObject.Draw(graphics);
}
_shadowShader.Run(_shadowQuality, _frameBuffer, _background, _smoothedIntensities);
}
_gameTime.EndEvent("Shading");
foreach (Cell cell in _grid)
{
cell.Reset();
}
using (Graphics graphics = Graphics.FromImage(_frameBuffer))
{
_gameTime.Draw(graphics, Width, Height);
string raysPerSecond = (_rayTracer.RaysCasted * _gameTime.CurrentFps).ToString("###,###,###");
graphics.DrawString($"{raysPerSecond} Rays/s", new Font("Arial", 16), new SolidBrush(Color.White), 20, Height - 50);
}
SetCaptureSource(_frameBuffer);
_gameTime.FinalizeUpdate();
}
}
