Shadow stop casting from big particles (clouds)

Development Rendering
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1

I couldn’t find anything about this in the documentation. When my clouds are too big they stop casting shadows. Is there a setting somewhere i’m missing ?

In the gif you can clearly see the shadow disappearing :


Thanks in advance for your help !

2

Forgot to add that i’m using UE4.7

3

You need to increase the size of your bounds to match the size of your particle. The shadowing is done based on the bounds of your effect.