Toggle Light Radius Indicator
Press Alt + R to show or hide the light radius wireframes in the level viewport.
You can toggle the light radius indicator on or off by holding down Alt and pressing R in the level viewport.
This is very helpful when you need to edit many lights at once without the light radius indicators cluttering up the viewport.
Where else can I find the toggle?
Alt + R flips the Light Radius show flag, which you’ll also find in the viewport’s Show menu under Advanced > Light Radius.
What does the indicator draw?
With the flag on, selected lights draw these shapes:
| Light | Shapes Drawn |
|---|---|
| Point Light | A sphere at the Attenuation Radius and a capsule for the source shape |
| Spot Light | The outer cone, the inner cone when Inner Cone Angle is above 0, and a capsule for the source shape |
| Rect Light | A sphere at the Attenuation Radius and the source rectangle with its barn doors |
Frequently asked questions
Why didn’t my other viewports change?
Show flags are per viewport, so toggling the flag in one viewport leaves the others as they were.
Can I force it in every viewport?
Yes, with the ShowFlag.LightRadius console variable. 0 forces it off, 1 forces it on, and 2 removes the override. It’s flagged as a cheat, so it only works outside shipping builds.
Can I change the shortcut?
Yes, you can rebind it in Edit > Keyboard Shortcuts, which opens with Ctrl + Alt + K.
Links
Check out the following resources to learn more about the subject.
Unreal Directive is free and ad-free.
If it saved you time, you can help keep it that way.