public override void Draw(GameTime gameTime)
{
#region Pass 1
// Use the default blend and depth configuration
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
GraphicsDevice.BlendState = BlendState.Opaque;
// Set the main render target, here we'll draw the base scene
GraphicsDevice.SetRenderTarget(MainSceneRenderTarget);
GraphicsDevice.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1f, 0);
Player.Draw(gameTime);
foreach (var room in Rooms)
{
room.Draw(gameTime);
}
foreach (var bullet in Bullets)
{
if (bullet.isInitialized())
{
bullet.Draw(gameTime);
}
else
{
bullet.Initialize(_game);
bullet.Load();
}
}
foreach (var enemy in Enemies)
{
enemy.Draw(gameTime);
}
Lamp.Draw(gameTime);
Lamp2.Draw(gameTime);
UI.Draw(gameTime, Player);
#endregion
#region Pass 2
// Set the render target as our bloomRenderTarget, we are drawing the bloom color into this texture
GraphicsDevice.SetRenderTarget(FirstPassBloomRenderTarget);
GraphicsDevice.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1f, 0);
if (Game.godMode)
{
Player.Draw(gameTime);
}
else
{
Player.DrawBlack(gameTime);
}
foreach (var room in Rooms)
{
room.DrawBlack(gameTime);
}
foreach (var enemy in Enemies)
{
enemy.DrawBlack(gameTime);
}
Lamp.DrawBloom(gameTime);
Lamp2.DrawBloom(gameTime);
UI.Draw(gameTime, Player);
#endregion
#region Multipass Bloom
// Now we apply a blur effect to the bloom texture
// Note that we apply this a number of times and we switch
// the render target with the source texture
// Basically, this applies the blur effect N times
BlurEffect.CurrentTechnique = BlurEffect.Techniques["Blur"];
var bloomTexture = FirstPassBloomRenderTarget;
var finalBloomRenderTarget = SecondPassBloomRenderTarget;
for (var index = 0; index < PassCount; index++)
{
//Exchange(ref SecondaPassBloomRenderTarget, ref FirstPassBloomRenderTarget);
// Set the render target as null, we are drawing into the screen now!
GraphicsDevice.SetRenderTarget(finalBloomRenderTarget);
GraphicsDevice.Clear(ClearOptions.Target | ClearOptions.DepthBuffer, Color.Black, 1f, 0);
BlurEffect.Parameters["baseTexture"].SetValue(bloomTexture);
FullScreenQuad.Draw(BlurEffect);
if (index != PassCount - 1)
{
var auxiliar = bloomTexture;
bloomTexture = finalBloomRenderTarget;
finalBloomRenderTarget = auxiliar;
}
}
#endregion
#region Final Pass
// Set the depth configuration as none, as we don't use depth in this pass
GraphicsDevice.DepthStencilState = DepthStencilState.None;
// Set the render target as null, we are drawing into the screen now!
GraphicsDevice.SetRenderTarget(null);
GraphicsDevice.Clear(Color.Black);
// Set the technique to our blur technique
// Then draw a texture into a full-screen quad
// using our rendertarget as texture
IntegrateEffect.CurrentTechnique = IntegrateEffect.Techniques["Integrate"];
IntegrateEffect.Parameters["baseTexture"]?.SetValue(MainSceneRenderTarget);
IntegrateEffect.Parameters["bloomTexture"]?.SetValue(FirstPassBloomRenderTarget);
FullScreenQuad.Draw(IntegrateEffect);
#endregion
}
