I wanted to turn on is Trigger by putting C-shaped mash in Unity Mash Collider. enter image description here But this mash collider doesn't activate is Trigger unless Convex is turned on When you turn on Convex, the C-shaped collider decreases the polygon and becomes dull, turning it into an O-shaped one enter image description here Is there a way to turn off Convex and use isTrigger, or is there any other way to start from scratch?
(unity 2021.3.x)