I want to make these 2 inner faces with rounded edges like the left image
At the right image I used Ctrl+B to make the outer edges of this board rounded but I can't apply this to inner face as the board itself is a cube with some modification
I want to make these 2 inner faces with rounded edges like the left image
At the right image I used Ctrl+B to make the outer edges of this board rounded but I can't apply this to inner face as the board itself is a cube with some modification
For your example this could do the job:
(tested with blender 2.9)
goto edit-mode
select only the 4 corner-vertices of the inner rectangle.
press CTRL + B
then, immediately press V (for vertex mode)
use mouse and scroll wheel to round the vertex
video (external link):