When you change the viewport in the demo "First-person shooter", the aspect ratio of what is on screen is not ideal anymore.
The demo starts in viewport size 854 x 480. (16:9)
When I change the viewport size to one of these two:
Then everything seems stretched.
Because I kept the ratio the same (16:9), I was expecting to see a normal aspect ratio, in a smaller viewport.
However, I get to see a stretched view of the world.
Why is this?
How do I change the resolution/viewport size in this demo without a stretched appearance?