Corona Renderer for 3ds Max > [Max] Bug Reporting

Corona VDB 7 vs 6

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olivierc:
Hello,

When you render a vdb file in Corona 6 which looks fine, the same file in Corona 7 hotfix 1 gives a completely different result. The VDB is almost transparent..
I have tried with a completly new scene, new load from a VDB file, I confirm, it is not working the same way as before.

Max 2021.

best,
Oliver

olivierc:
Ok, I think I found the problem. Scale seems to be the problem between Corona 7 and 6.

If the CoronaVolumeGrid object is not scaled in Max, there is no problems. The VDB seems to render correctly.

But if there is a scale on the CoronaVolumeGrid object, in my case, 2%, then the VDB renders almost transparent. Step size seems to change but is far to solve the problem.

Whereas this issu with the scale was supported in Corona 6.

Please can you have a look at this bug ?
What would be the workarround ?

Thank you !

Olivier

rowmanns:
Hi,

Please can you provide a scene?

Thanks,

Rowan

v.p.vlasenko:
I confirm this problem, noticed that some time ago.

rowmanns:
Hi Guys,

Please can you send me one of your affected VDB files? I just tried this here and it seems to work fine for me, so maybe there is something which I am missing.

Thanks,

Rowan

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