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Possible bug in "Use Inverse Square Falloff", blue screen flicker

I was looking for a per pixel translucent lighting solution and found out about the surface forwardshading method, when i enabled that the method to my glass material and ran some test, when i rotated the camera to the front of my vehicle with all the lighting on it made the entire screen flicker black/blue. https://gyazo.com/d5ef844cb59e9aa42537ba546188174e

I thought that was the issue as i noticed the flicker after switching translucent material methods, after further investigation I found it is the Use Inverse Square falloff setting in the spotlight, combine that with 2 spotlights in close proximity aiming at a camera will cause the blue/black flicker of the entire screen.

The headlights consist out of 2 spotlights combined with an emissive texture, it only flickers blue/black when looking into a headlight when both spotlights are on (lowbeam and highbeam)

Kind regards,

Product Version: UE 4.21
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asked Feb 20 '19 at 07:05 PM in Bug Reports

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avatar image Jeff A ♦♦ STAFF Feb 21 '19 at 06:15 PM


We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.



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