/// <summary>
/// Function to initialize the effects and the effect compositor.
/// </summary>
private static void InitializeEffects()
{
// The blur effect.
_blurEffect = new Gorgon2DGaussBlurEffect(_renderer)
{
PreserveAlpha = true
};
_blurEffect.Precache();
// The grayscale effect.
_grayScaleEffect = new Gorgon2DGrayScaleEffect(_renderer);
// The posterize effect.
_posterizeEffect = new Gorgon2DPosterizedEffect(_renderer)
{
Bits = 10
};
// The 1 bit effect.
_1BitEffect = new Gorgon2D1BitEffect(_renderer)
{
Threshold = new GorgonRangeF(0.5f, 1.0f),
ConvertAlphaChannel = false
};
// The burn effect.
_burnEffect = new Gorgon2DBurnDodgeEffect(_renderer)
{
UseDodge = false
};
// The dodge effect.
_dodgeEffect = new Gorgon2DBurnDodgeEffect(_renderer)
{
UseDodge = true
};
// The invert effect.
_invertEffect = new Gorgon2DInvertEffect(_renderer);
// The sharpen effect.
_sharpenEffect = new Gorgon2DSharpenEmbossEffect(_renderer)
{
UseEmbossing = false,
Amount = 1.0f
};
// The emboss effect.
_embossEffect = new Gorgon2DSharpenEmbossEffect(_renderer)
{
UseEmbossing = true,
Amount = 1.0f
};
// The sobel edge detection effect.
_sobelEffect = new Gorgon2DSobelEdgeDetectEffect(_renderer)
{
LineThickness = 2.5f,
EdgeThreshold = 0.80f
};
// An old film effect.
_oldFilmEffect = new Gorgon2DOldFilmEffect(_renderer)
{
ScrollSpeed = 0.05f
};
// A HDR bloom effect.
_bloomEffect = new Gorgon2DBloomEffect(_renderer)
{
Threshold = 1.11f,
BloomIntensity = 35.0f,
BlurAmount = 6.0f,
ColorIntensity = 1.15f
};
// A chromatic aberration effect.
_chromatic = new Gorgon2DChromaticAberrationEffect(_renderer)
{
Intensity = 0.25f
};
_compositor = new Gorgon2DCompositor(_renderer);
// Set up each pass for the compositor.
// As you can see, we're not strictly limited to using our 2D effect objects, we can define custom passes as well.
// And, we can also define how existing effects are rendered for things like animation and such.
_compositor.EffectPass("Chromatic Aberration", _chromatic)
.EffectPass("1-Bit Color", _1BitEffect)
.EffectPass("Blur", _blurEffect)
.EffectPass("Grayscale", _grayScaleEffect)
.EffectPass("Posterize", _posterizeEffect)
.EffectPass("Burn", _burnEffect)
.EffectPass("Dodge", _dodgeEffect)
.EffectPass("Invert", _invertEffect)
.EffectPass("Sharpen", _sharpenEffect)
.EffectPass("Emboss", _embossEffect)
.EffectPass("Bloom", _bloomEffect)
.Pass(new Gorgon2DCompositionPass("Sobel Edge Detection", _sobelEffect)
{
BlendOverride = GorgonBlendState.Default,
ClearColor = GorgonColor.White
})
.RenderPass("Sobel Blend Pass",
(sobelTexture, pass, passCount, size) =>
{
// This is a custom pass that does nothing but rendering. No effect is applied here, just straight rendering to
// the currently active render target.
var rectPosition = new DX.RectangleF(0, 0, size.Width, size.Height);
var texCoords = new DX.RectangleF(0, 0, 1, 1);
_renderer.DrawFilledRectangle(rectPosition, GorgonColor.White, _images[_currentImage], texCoords);
_renderer.DrawFilledRectangle(rectPosition, GorgonColor.White, sobelTexture, texCoords);
})
.Pass(new Gorgon2DCompositionPass("Olde Film", _oldFilmEffect)
{
BlendOverride = GorgonBlendState.Additive,
RenderMethod = (prevEffect, passIndex, passCount, size) =>
{
// Here we can override the method used to render to the effect.
// In this case, we're animating our old film content to shake and darken at defined intervals.
// If we do not override this, the compositor would just blit the previous texture to the
// current render target.
var rectPosition = new DX.RectangleF(0, 0, size.Width, size.Height);
var texCoords = new DX.RectangleF(0, 0, 1, 1);
GorgonColor color = GorgonColor.White;
if ((GorgonTiming.SecondsSinceStart % 10) >= 4)
{
rectPosition.Inflate(GorgonRandom.RandomSingle(1, 5), GorgonRandom.RandomSingle(1, 5));
float value = GorgonRandom.RandomSingle(0.5f, 0.89f);
color = new GorgonColor(value, value, value, 1.0f);
}
_renderer.DrawFilledRectangle(rectPosition, color, prevEffect, texCoords);
}
})
.InitialClearColor(GorgonColor.White)
.FinalClearColor(GorgonColor.White);
_compositor.Passes["Chromatic Aberration"].Enabled = false;
_compositor.Passes["Bloom"].Enabled = false;
_compositor.Passes["Posterize"].Enabled = false;
_compositor.Passes["Grayscale"].Enabled = false;
_compositor.Passes["1-Bit Color"].Enabled = false;
_compositor.Passes["Emboss"].Enabled = false;
_compositor.Passes["Dodge"].Enabled = false;
_compositor.Passes["Olde Film"].Enabled = false;
}
/// <summary>
/// Function to release the shaders and the resources allocated to them.
/// </summary>
public void FreeEffects()
{
if (_posterizeEffect != null)
{
_posterizeEffect.Dispose();
_posterizeEffect = null;
}
if (_grayScaleEffect != null)
{
_grayScaleEffect.Dispose();
_grayScaleEffect = null;
}
if (_waveEffect != null)
{
_waveEffect.Dispose();
_waveEffect = null;
}
if (_1BitEffect != null)
{
_1BitEffect.Dispose();
_1BitEffect = null;
}
if (_sharpenEmbossEffect != null)
{
_sharpenEmbossEffect.Dispose();
_sharpenEmbossEffect = null;
}
if (_invertEffect != null)
{
_invertEffect.Dispose();
_invertEffect = null;
}
if (_gaussBlurEffect != null)
{
_gaussBlurEffect.Dispose();
_gaussBlurEffect = null;
}
if (_sobelEdgeDetectEffect != null)
{
_sobelEdgeDetectEffect.Dispose();
_sobelEdgeDetectEffect = null;
}
if (_burnDodgeEffect != null)
{
_burnDodgeEffect.Dispose();
_burnDodgeEffect = null;
}
if (_displacementEffect == null)
{
return;
}
_displacementEffect.Dispose();
_displacementEffect = null;
}