How do I render a specific part of the viewport? How can I render a specific spot in the render mode like this?



I want to know how to render a specific part of the scene I am rendering in the view port and is this still possible in blender 2.81?
If so please tell me. I have tried everything and still cant figure it out.
I know its a really stupid question but I really want to know
The functionality is called Render region. Press CTRL + B and then draw a rectangle around the area you want to render.

Remove the region with CTRL + ALT + B