public void Clear()
{
iteration = 0;
// zero out both average textures before accumulation
GL.Ext.BindFramebuffer(FramebufferTarget.FramebufferExt, fboHandle);
GL.FramebufferTexture2D(FramebufferTarget.FramebufferExt,
FramebufferAttachment.DepthAttachmentExt, TextureTarget.Texture2D,
currentFrameDepthTexture, 0);
GL.FramebufferTexture2D(FramebufferTarget.FramebufferExt,
FramebufferAttachment.ColorAttachment0Ext, TextureTarget.Texture2D,
averageTexture, 0);
LayerHelper.CheckFbo();
GL.ClearColor(0, 0, 0, 1);
GL.Clear(ClearBufferMask.ColorBufferBit);
GL.FramebufferTexture2D(FramebufferTarget.FramebufferExt,
FramebufferAttachment.ColorAttachment0Ext, TextureTarget.Texture2D,
updatedAverageTexture, 0);
GL.ClearColor(0, 0, 0, 1);
GL.Clear(ClearBufferMask.ColorBufferBit);
LayerHelper.CheckFbo();
}