Opengl glblitframebuffer opengl:opengl.glBlitFramebuffer Function glBlitFramebuffer:Void( srcX0:GLint,srcY0:GLint,srcX1:GLint,srcY1:GLint,dstX0:GLint,dstY0:GLint,dstX1:GLint,dstY1:GLint,mask:GLbitfield,filter:GLenum )#