protected override void Draw(GameTime gameTime)
{
// render the scene in black
RenderScene(
_RenderTargetMask,
_EffectBlack,
_WorldView,
_WorldProjection);
// render the scene with material and lighting
RenderScene(
_RenderTargetColor,
_ModelMaterial,
_WorldView,
_WorldProjection);
// _saveRTasPNG(_RenderTargetColor, "RenderTargetColor.png");
// additively render the mask over the background
GraphicsDevice.SetRenderTarget(_RenderTargetTemp);
GraphicsDevice.Clear(Color.Black);
spriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, null, null, null, basicEffect, Matrix.CreateScale(1f / (float)texFactor));
spriteBatch.Draw(_BackgroundTexture, new Rectangle((int)((2 * LightMapPosition.X + LightMapOffset.X) * GraphicsDevice.Viewport.Width - _BackgroundTexture.Width / texFactor / 2), (int)((2 * LightMapPosition.Y + LightMapOffset.Y) * GraphicsDevice.Viewport.Height - _BackgroundTexture.Height / texFactor / 2), (int)(_BackgroundTexture.Width / texFactor), (int)(_BackgroundTexture.Height / texFactor)), Color.White);
spriteBatch.Draw(_RenderTargetMask, Vector2.Zero, Color.Black);
spriteBatch.End();
GraphicsDevice.SetRenderTarget(null);
// _saveRTasPNG(_RenderTargetTemp, "blend.png");
// create mipmap levels of the resulting target
RenderTarget2D[] MipLevels =
_PostScreenFilters.CreateMipMapLevels(
_RenderTargetTemp);
//for (int i = 0; i < MipLevels.Length; ++i)
//_saveRTasPNG(MipLevels[ i ], "mipLevel_" + i + ".png");
// perform the light shafts on half of the resolution
_PostScreenFilters.LightShafts(
MipLevels[0],
_RenderTargetShaftsHalf,
LightMapPosition,
LightShaftDensity,
LightShaftDecay,
LightShaftWeight,
LightShaftExposure);
// _saveRTasPNG(_RenderTargetShaftsHalf, "RenderTargetShaftsHalf.png");
// up-scale the effect
_PostScreenFilters.HalfToFullscreen(
_RenderTargetShaftsHalf,
_RenderTargetShaftsFull);
// _saveRTasPNG(_RenderTargetShaftsFull, "RenderTargetShaftsFull.png");
///////////////////////////////////////////////////////////
////Doesn't work...maybe he forgot or whatever...////
// extract luminance values above threshold
//_PostScreenFilters.ExtractHighLuminance(
// _RenderTargetShaftsFull,
// _RenderTargetLuminance,
// LuminanceThreshold,
// LuminanceScaleFactor);
// create mipmap levels of extracted values and
// additively blend them
//RenderTarget2D RT = _PostScreenFilters.AdditiveBlend(
// _RenderTargetLuminance);
// _saveRTasPNG(RT, "AdditiveBlend.png");
//////////////////////////////////////////////////////
// combine all the targets
GraphicsDevice.SetRenderTarget(_RenderTargetFinal);
GraphicsDevice.Clear(ClearOptions.Target, Vector4.Zero, 1, 0);
spriteBatch.Begin(
SpriteSortMode.Immediate,
BlendState.Additive);
spriteBatch.Draw(_RenderTargetShaftsFull, Vector2.Zero, Color.White);
spriteBatch.Draw(_RenderTargetColor, Vector2.Zero, Color.White);
//// spriteBatch.Draw(RT, Vector2.Zero, Color.White);
spriteBatch.End();
GraphicsDevice.SetRenderTarget(null);
// draw them on the screen
spriteBatch.Begin(
SpriteSortMode.Immediate,
BlendState.Opaque);
spriteBatch.Draw(
_RenderTargetFinal,
Vector2.Zero,
Color.White);
spriteBatch.End();
base.Draw(gameTime);
}
protected override void Draw(GameTime gameTime)
{
// render the scene in black
RenderScene(
_RenderTargetMask,
_EffectBlack,
_WorldView,
_WorldProjection);
// render the scene with material and lighting
RenderScene(
_RenderTargetColor,
_ModelMaterial,
_WorldView,
_WorldProjection);
// _saveRTasPNG(_RenderTargetColor, "RenderTargetColor.png");
// additively render the mask over the background
GraphicsDevice.SetRenderTarget(_RenderTargetMaskedBackground);
GraphicsDevice.Clear(Color.Black);
spriteBatch.Begin(
SpriteSortMode.Immediate,
BlendState.AlphaBlend,
null,
null,
null,
basicEffect,
Matrix.CreateScale(1f / (float)texFactor));
spriteBatch.Draw(
_BackgroundTexture,
new Rectangle(
(int)((2 * LightMapPosition.X + LightMapOffset.X) * GraphicsDevice.Viewport.Width - _BackgroundTexture.Width / texFactor / 2),
(int)((2 * LightMapPosition.Y + LightMapOffset.Y) * GraphicsDevice.Viewport.Height - _BackgroundTexture.Height / texFactor / 2),
(int)(_BackgroundTexture.Width / texFactor),
(int)(_BackgroundTexture.Height / texFactor)),
Color.White);
spriteBatch.Draw(
_RenderTargetMask,
Vector2.Zero,
Color.Black);
spriteBatch.End();
GraphicsDevice.SetRenderTarget(null);
//_saveRTasPNG(_RenderTargetMaskedBackground, "MaskedBackground.png");
// applying the 'linearFilter' effect to the masked background
// on half of the resolution
_PostScreenFilters.linearFilter(
_RenderTargetMaskedBackground,
_RenderTargetLinearFilter);
// perform the light shafts on the masked background
// on half of the resolution
_PostScreenFilters.LightShafts(
_RenderTargetLinearFilter,
_RenderTargetShaftsHalf,
LightMapPosition,
LightShaftDensity,
LightShaftDecay,
LightShaftWeight,
LightShaftExposure);
// _saveRTasPNG(_RenderTargetShaftsHalf, "RenderTargetShaftsHalf.png");
// up-scale the effect
_PostScreenFilters.HalfToFullscreen(
_RenderTargetShaftsHalf,
_RenderTargetShaftsFull);
// _saveRTasPNG(_RenderTargetShaftsFull, "RenderTargetShaftsFull.png");
// combine all the targets
GraphicsDevice.SetRenderTarget(_RenderTargetFinal);
GraphicsDevice.Clear(ClearOptions.Target, Vector4.Zero, 1, 0);
spriteBatch.Begin(
SpriteSortMode.Immediate,
BlendState.Additive);
spriteBatch.Draw(
_RenderTargetShaftsFull,
Vector2.Zero,
Color.White);
spriteBatch.Draw(
_RenderTargetColor,
Vector2.Zero,
Color.White);
spriteBatch.End();
GraphicsDevice.SetRenderTarget(null);
// draw them on the screen
spriteBatch.Begin(
SpriteSortMode.Immediate,
BlendState.Opaque);
spriteBatch.Draw(
_RenderTargetFinal,
Vector2.Zero,
Color.White);
spriteBatch.End();
base.Draw(gameTime);
}