id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
168	Utilize discard framebuffer to speed up render target switch	gongminmin	gongminmin	Render target switch requires GPUs to restore data from memory. EXT_discard_framebuffer in OpenGL ES and DiscardView in D3D11.1 speed up this process, especially on tile-based hardware.	enhancement	closed	major	4.4.0	Core-Rendering system	4.3.0	fixed