Displacement

V-Ray V-Ray for 3ds Max General
1

Howdy,

If I have an object that has several material ID’s how do I apply a v-ray displacement to just one of them? I have a site with sidewalks, grass, and roads. I would like to add a displacement to just the grass.

Any help would be greatly appreciated.

2

u have to use “use object material” option in the displacement modifier and set it to 3d mapping.
:wink:

3

displacement

Does it use the material bump map? How do I apply an UVW per ID?

4

no. put ur displacement map into the material’s displacement slot.
to map diferent id’s just use the mat id switch for each modifier.

5

Uvw

Material Id switch… I don’t see that. Can you elaborate?

6

“map channel”
use a UVW Mapping modifier per material ID

sorry about that is just my memory playing tricks on me!:slight_smile:

7

Uvw

Now I get it, thanks for the help.

8

any time!
:wink:

9

Object material

I am still having issues. Is it using the diffused material? Nothing seems to be being displaced? I have my diffused and bump maps populated.

10

i just quoted myself!
now thats fun!:smile:

11

This is one reason why I personally hate meshes that have mutli-subobject materials. I like each piece to be it’s own object with it’s own material, and just group everything into one object rather than attaching everything into one object:smile: Multi-subobject materials have their place of course.. I just don’t like to use them unless it makes sence. But that’s just me. :smile:

Anyway… shouldn’t the displacement map be in the displacement slot (vray material) and not the bump slot?

12

yes.

please, i don t want to qute myself…again!:lol:

13

displacement

Yes, the displacement should be in the materials displacement slot. It worked great… both the uvw id and the displacement by material. I have been wanting to work this through for awhile so thanks for the help. I like to keep everything together for future modifications.