2 sided material and normalmap issue?

[markus_s_cg]

I have an issue where strange artefacts appear on a leaf material with 2-sided material. The problem seems to come only when using a normalmaps, and at particular angles. Take a look. Is this a bug or am I doing something wrong? The normalmap is set to use gamma 1.0 so that shouldn't be the issue.

https://vimeo.com/264589908
password: v-ray

[markus_s_cg]

I tested with a standard vray material as well, and the normalmap works fine.
Here is a link to the plant model I used.
https://www.blog.viz-people.com/blog...3d-model-mint/


V-ray adv version used for my render is 3.60.04

[matanov]

Please send me that simple scene with just the leaves.

[markus_s_cg]

I sent you an email with a zip archive attached.

[BBB3]

That happens to me all the time. I have stopped using normal maps together with 2sided material for that reason.

[kosso_olli]

And another entry in the long list of bump map related issues in V-Ray.
It is time to do something against all this...

[vlado]

<shrug> Will get to it.

Best regards,
Vlado

[markus_s_cg]

Thanks for the update. At least I know it's a bug. I removed the normalmap in this case...

[new.ages]

You can put your Material without bump in a VrayBumpMaterial and use a Normalmap there