I am trying to follow along the fundamentals of material and shaders, and as iti is often shown pressing cntrl+b in the 3d editor should allow one to render only a selected region of the screen. It does not work for me and makes it very hard to follow the tutoria trough. I am workin in 3.5, I checked my keybindings, checked t render region option on the render panel.
I don't know what to do...
trued uploading mage of viewport but it does not let me despite being png or jpg
