private void drawBlurredFrameBuffer(int kernelRadius, float sigma, float blurRotation)
{
FrameBuffer current = SharedData.CurrentEffectBuffer;
FrameBuffer target = SharedData.GetNextEffectBuffer();
GLWrapper.SetBlend(BlendingParameters.None);
using (BindFrameBuffer(target))
{
blurShader.GetUniform <int>(@"g_Radius").UpdateValue(ref kernelRadius);
blurShader.GetUniform <float>(@"g_Sigma").UpdateValue(ref sigma);
Vector2 size = current.Size;
blurShader.GetUniform <Vector2>(@"g_TexSize").UpdateValue(ref size);
float radians = -MathUtils.DegreesToRadians(blurRotation);
Vector2 blur = new Vector2(MathF.Cos(radians), MathF.Sin(radians));
blurShader.GetUniform <Vector2>(@"g_BlurDirection").UpdateValue(ref blur);
blurShader.Bind();
DrawFrameBuffer(current, new RectangleF(0, 0, current.Texture.Width, current.Texture.Height), ColourInfo.SingleColour(Color4.White));
blurShader.Unbind();
}
}