public void BlitTextureTo(Framebuffer target, TextureAttachment textureAttachment, BlitFilter filter, RectangleI rect)
{
if (textureAttachment < 0)
{
throw new ArgumentOutOfRangeException($"Can't blit a depth texture.");
}
Graphics.State.OnStateChanging.Invoke();
OpenGLFramebuffer originalFramebuffer = Current as OpenGLFramebuffer;
GL.BindFramebuffer(FramebufferTarget.Read, id);
Swaps++;
GL.BindFramebuffer(FramebufferTarget.Draw, ((OpenGLFramebuffer)target ?? (OpenGLFramebuffer)Default).id);
Swaps++;
Graphics.SetViewport(target);
Graphics.SetScissorTest(target);
GL.ReadBuffer((ReadBuffer)((uint)ReadBuffer.Colour0 + (uint)textureAttachment));
GL.BlitFramebuffer(new RectangleI(Width, Height), rect, BufferBit.Colour, filter.ToOpenGL());
//GL.BlitFramebuffer(new RectangleI(Width, Height), rect, textureAttachment >= 0 ? BufferBit.Colour : BufferBit.Depth, filter.ToOpenGL());
// Reset Framebuffer
GL.BindFramebuffer(FramebufferTarget.Framebuffer, (originalFramebuffer ?? (OpenGLFramebuffer)Default).id);
Blits++;
Graphics.State.OnStateChanged.Invoke();
}
internal override Framebuffer CreateDefaultFramebuffer()
{
return(OpenGLFramebuffer.CreateDefault());
}