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Effect Volume incorrect shading


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Hello,

The shading of effect volumes is incorrect when then camera just enters the volume. See attached pictures (0.png = camera just outside, 1.png = camera just inside).

I was trying to use a volume to simulate ground fog over a pond. This issue leads to a strong visual change when the camera enters or leaves the volume perpendiculary, and creates a "split screen" effect when the camera enters/leaves tangently.

 

0.PNG

1.PNG

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Hi,

As for VolumeBox with volume_fog_*, I'm afraid it's an expected behavior.

You can try to use volume_cloud_* material with VolumeBox object to avoid such problems.

Thanks!

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Hi,

IMHO, a volume box should offer a smooth visual transition from outside to inside, from all angles. Let's call that a "known limitation".

Anyway, I tried the volume_cloud, but surely the performance impact is not the same, and for a very large array (fog over a large water area where my helicopter must fly through), it is not the most optimal way, nor the best looking one (a lot of visual ring artifacts due to the low sampling, and a higher sampling decrease performance).

Maybe reconsider enhancing the volume box for a future version?

Thanks

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