public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("opacity", Mathf.Max(Opacity, 0));
m_shader.Send("size", Mathf.Max(Size, 0));
m_shader.Send("noise", Mathf.Random(), Mathf.Random());
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("distortionFactor", DistortionFactor.X, DistortionFactor.Y);
m_shader.Send("feather", Feather);
m_shader.Send("scaleFactor", ScaleFactor);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("direction", 1f / Graphics.GetWidth(), 0f);
buffer.Swap(m_shader);
m_shader.Send("direction", 0f, 1f / Graphics.GetHeight());
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("radius", Math.Max(0, Radius));
m_shader.Send("softness", Math.Max(0, Softness));
m_shader.Send("opacity", Math.Max(0, Opacity));
m_shader.Send("color", Color.X, Color.Y, Color.Z, 1);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
var dx = Mathf.Cos(Angle) * Radius / Graphics.GetWidth();
var dy = Mathf.Sin(Angle) * Radius / Graphics.GetHeight();
m_shader.Send("direction", dx, dy);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("width", m_width);
m_shader.Send("phase", Phase);
m_shader.Send("thickness", Thickness);
m_shader.Send("opacity", Opacity);
m_shader.Send("color", Color);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("direction", 1f / Graphics.GetWidth(), 0);
m_shader.Send("radius", Mathf.Floor(Radius.X + .5f));
buffer.Swap(m_shader);
m_shader.Send("direction", 0, 1f / Graphics.GetHeight());
m_shader.Send("radius", Mathf.Floor(Radius.Y + .5f));
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("exposure", Mathf.Clamp01(Exposure));
m_shader.Send("decay", Mathf.Clamp01(Decay));
m_shader.Send("density", Mathf.Clamp01(Density));
m_shader.Send("weight", Mathf.Clamp01(Weight));
m_shader.Send("light_position", LightPosition);
m_shader.Send("samples", Mathf.Max(Samples, 1f));
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
UpdateSceneCanvas();
buffer.Swap();
var front = buffer.Front;
var scene = buffer.Back;
var back = m_scene;
// 1st pass: draw scene with brightness threshold
Graphics.SetCanvas(front);
Graphics.Clear();
Graphics.SetShader(m_shaderThreshold);
Graphics.Draw(scene);
// 2nd pass: apply blur shader in x
m_shaderBlur.Send("direction", 1f / Graphics.GetWidth(), 0f);
Graphics.SetCanvas(back);
Graphics.Clear();
Graphics.SetShader(m_shaderBlur);
Graphics.Draw(front);
// 3nd pass: apply blur shader in y and draw original and blurred scene
Graphics.SetCanvas(front);
Graphics.Clear();
// original scene without blur shader
Graphics.SetShader();
Graphics.SetBlendMode(BlendMode.Add, BlendAlphaMode.PreMultiplied);
Graphics.Draw(scene); // original scene
// second pass of light blurring
m_shaderBlur.Send("direction", 0f, 1f / Graphics.GetHeight());
Graphics.SetShader(m_shaderBlur);
Graphics.Draw(back);
// restore things as they were before entering draw()
Graphics.SetBlendMode(BlendMode.Alpha, BlendAlphaMode.PreMultiplied);
m_scene = back;
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("feedback", Mathf.Clamp01(Feedback));
m_shader.Send("size", Size);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("palette", Palette.ColorA, Palette.ColorB, Palette.ColorC, Palette.ColorD);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("tint", Tint.X, Tint.Y, Tint.Z, 1);
m_shader.Send("strength", Strength);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("factors", Factors);
buffer.Swap(m_shader);
}
public abstract void Draw(DoubleBufferCanvas buffer);
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("amp", Math.Max(Amp, 0f));
m_shader.Send("center", Center);
buffer.Swap(m_shader);
}
public override void Draw(DoubleBufferCanvas buffer)
{
m_shader.Send("num_bands", Math.Max(NumBands, 1f));
buffer.Swap(m_shader);
}
