Invalid Bump Normal

[radiosity1980]

Goodmorning everyone. V-Ray has given me this problem
" Invalid Bump Normal" . Can someone help me?
sotty for my poor language

[vlado]

What kind of texture is it?

Best regards,
Vlado

[radiosity1980]

good morning to all of you. I used a standard jpeg, already used in other works without problems.
My client has realized the 3d with Sketchup, and he has exported the file in .3ds format.
I converted to POLY, and I have assigned the "normal" modifier, this has solved some of mapping problems, but vray started to give me the error "Invalid Bump Normal"
I used 3dsmax vray + 2016 + 3:40:02 forest pack
Do you believe that the problem is caused by export of Sketchup?

[matanov]

Most likely yes. Just in case can you send me the scene at peter.matanov@chaosgroup.com so I can check it out ?

[TutanMark]

Maybe same problem here.
Message is "Texture map (normal bump) is incompatible with Vray and may cause problems"

No Sketchup.
Max 2015, Vray 3.40.02, WIndows 10

Regards
Marco G.

[radiosity1980]

ok, I send the file.
Sorry for my poor language

[matanov]

I got your scene but I didn't get any warnings/errors while rendering for invalid bump normals, anyway I will keep testing until something comes up. BTW using VRayNormalMap instead of NormaMap is highly recommended.

[radiosity1980]

Thanks for your help.
The normal map was on a forest pack (Willow) object but it was not this that slowed the render even if caused the "warnings"

I have resolved by deleting all objects Guruwave (gwIvy)

If there were objects IvyGroove the L.C.s It did not end the calculation.
I use the VrayMtlWrapper for the gwIvy Material
(you can see the picture below)
Sorry for my poor language

[matanov]

Why are you using VrayMtlWrapper ? I don't see any of its options activated.

[Syclone1]

In regards to the OP I just got a new evermotion pack of models and every one I import is generating the same error as in the screen shot in the first post. Normally I wouldn't sweat it but Im looking at hundreds of objects that are causing this and not looking forward to manually converting every one to VRayNormalMap. is there a script by chance that can take care of this?

[matanov]

Please send me one of those objects at peter.matanov@chaosgroup.com. What version of V-Ray are you using ?

[Syclone1]

Please send me one of those objects at peter.matanov@chaosgroup.com. What version of V-Ray are you using ?

Ok Ill pack one up for you shortly, using 3dsmax 2016 SP3, V-Ray 3.40.02 on Win10

**EDIT** Peter, you should get it shortly, had to use WeSendIt as it was a little too big to email.

[matanov]

No invalid bump warnings on my machine.. Only the warnings for using 3ds max Normal Maps which can be fixed by using the V-Ray scene converter (right click in the viewport).

[Syclone1]

OK Ill give it a shot. Thank you.

[radiosity1980]

I used VrayMtlWrapper because I thought it was how to convert the standar material in V-Ray material.
the automatic converter for the standard material in vray material do not really like
sorry for my poor language
thansk for help