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FActiveSound::UpdateAdjustVolumeMultiplier -> CurrentAdjustVolumeMultiplier = 1.#INF0000

Hi,

My engine version : 4.8

I believe this issue occurs on 4.9 and master too, because there is no change in this code since 4.8.

The function from the topic in some circumstances can calculate wrong CurrentAdjustVolumeMultiplier value = 1.#INF0000 because there is possibility to divide by 0.

This line of code:

 CurrentAdjustVolumeMultiplier += (TargetAdjustVolumeMultiplier - CurrentAdjustVolumeMultiplier) * DeltaTime / (TargetAdjustVolumeStopTime - PlaybackTime);

in my case for looped sound:

 PlaybackTime = 3.10002732
 TargetAdjustVolumeStopTime = 3.10002732

will give something divided by 0.f

I've changed this line of code:

 if( PlaybackTime <= TargetAdjustVolumeStopTime )

to

 if( PlaybackTime < TargetAdjustVolumeStopTime )


And it seems it solves dividing by 0 issue. What do you guys think about my solution?:)

Regards

Pierdek

Product Version: UE 4.8
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asked Aug 28 '15 at 09:05 AM in Bug Reports

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Pierdek
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Hey Pierdek,

Thank you for catching this issue and applying a fix. In order to see this fix applied would you mind submitting a pull request via GitHub?

If you need instructions or help on how to submit a pull request please let me know.

Cheers,

Andrew Hurley

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answered Aug 28 '15 at 01:35 PM

avatar image Pierdek Aug 28 '15 at 02:22 PM

Sure I can make a pull request.

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