FBO   xtlang

(bind-func FBO
  (lambda (colour:Texture*)
    (let ((fbo (FBO:[FBO*,i32,Texture*,Texture*,i32,i32]* 0 colour null (width colour) (height colour))))
      (glGenFramebuffers 1 (tref-ptr fbo 0))
      (gl_print_error "Error creating FBO")
      (glBindFramebuffer GL_FRAMEBUFFER (tref fbo 0))
      (bind colour)
      (glFramebufferTexture2D GL_FRAMEBUFFER GL_COLOR_ATTACHMENT0 GL_TEXTURE_2D (id colour) 0)
      (unbind colour)
      (update colour)
      (glBindFramebuffer GL_FRAMEBUFFER 0)
      fbo)))