[Fernando Tella]

Hi,

Title says it all. When mirroring an instance I'm getting bump reversed. Breaking the instance link fixes the problem.

3dsmax 2014.

[raduc]

Hi, I can't reproduce this issue, I've tried mirroring a box with a global bump on it and the bump map matched the viewport preview.
Can you give me a sample scene ?

[Fernando Tella]

It seems it doesn't happen with global bump, but it does with the BSDF bump and instanced object. It should be easy to reproduce, I've just made a new scene that shows it.

This happens with bump in the BSDF (Instance on the left, original object on the right):



I found also a strange behaviour if I put the bump in global and BSDF at the same time:



The scene:

http://www.ftella.com/links/mirrored%20 ... 20bump.max

[dariolanza]

Hello Fernando,

Glad to see you.

Sadly I can not reproduce your fail.

Here I have one object and its instance, with a bump map applied to the Global Bump, and as you can see, there is no difference between them.

Am I missing something?

Cheers

Dario Lanza

[Fernando Tella]

Hola Darío,

Mirrored instance? I've noticed if "Use 3dmax instances" is unticked it doesn't happen but it does if ticked; so probably it's only about 3dsmax plugin. I remember Mihnea saying that option sometimes breaks things.

The strange behaviour about using the same map in both global bump and BSDF bump still happens without using 3dsmax instances.

[Fernando Tella]

with a bump map applied to the Global Bump
Dario Lanza

Apply it to the bump chip inside the BSDF. It doesn't happen with global.

[Fernando Tella]

Bump!