GBuffer: support half or quater sized texture

[WangHoi]

Will it be a good idea, that GBuffer can manage texture with size proportion to full resolution?

So GBuffer::Resize can resize with the size ratio.

[TheMostDiligent]

I don't see a need for this. G-buffer is unaware of whether it is attached to a screen, used for off-screen rendering with some predefined size or used for any other purpose.
If you need to scale the screen resolution, it can be easily done outside of G-buffer.

[WangHoi]

OK, thanks for your reply.