Filters in higher-resolution than the scene resolution

Hi,

I saw that you added custom resolutions. The problem with your implementation is that all the filters down the pipeline are still using that same resolution, so you can't fake the screendoor effect, and the RGB film effect spreads over multiple pixels.

I fixed that by adding a separate pass that stretches the low-resolution render to match window width/height. The code is a little rough, but it should be readable. Send me a message or an email @ vladkvit@outlook.com if you have any questions.

Cheers,
Vlad