Octane Rendering trouble on transpearent area.

[calvados]

I meet trouble on simple scene, that is trouble on transparent area may be.
I attach 3 pictures , Octane result, Smith Micro SuperFly result, and LuxRender Result.
You can find red area at bust on Octane result.
I feel this result is caused by transparent and AO or another kind if object nearest, but I can't not understand this trouble.
Please advise that how to solve this trouble?

If you need file of this scene, I can send you.

[Zay]

Looks like it the same problem as mentioned here:
viewtopic.php?f=45&t=51547

[calvados]

Thank you your post.
I think, this problem is little bit different from your informed thread.
But your informed thread is commented this kind of problem.
Is this deep problem of octane ?

[Zay]

To me there is no difference. Use the brush tool to pull the bikini out a bit. That should fix the problem.

[calvados]

Thank you for your advice,
I will try it today/Japanese Time, may be 10 h later.

Can I ask you ?
This problem is escape by rendering parameter ?
Because Poser or vue has similar problem caused by Polygon edge in Ray tracing environment. Those software has special option for ray trace resolution, it can escape problem. Because Object distance will make un-real result

[face_off]

Yes - this is the same problem as in that link. So reduce the ray epsilon to the lowest non-zero value possible, and if that doesn't resolve it, lift the bikini top away from the figures skin a fraction.

Paul

[calvados]

Thank you for lot of support.
Problem solved