public GLESFBOManager()
:base()
{
LogManager.Instance.Write("FBO CTOR ENTER");
_renderBuffer = new Dictionary<RBFormat, RBRef>();
TemporaryFBO = 0;
DetectFBOFormats();
OpenGLOES.GenFramebuffers(1, ref _tempFbo);
GLESConfig.GlCheckError(this);
LogManager.Instance.Write("FBO CTOR EXIT");
}