more than one bump map in a single material?

[sygboe]

Hi can anyone help me please?

 

i cant seem to be able to use more than one bump map in a single material?

i.e.

 

i have tried a blend material, but it also blends the colour as well as the bump.

 

i'm doing a render of a modular floor system.

i want to show the wood grain, and the indent where the tiles fit together. I'd rather not use geometry for the indent/joins.

 

 

i have a wood floor diffuse map.

the wood grain on a bump map.

but i want to include another bump map that would show the indent/joins in the floor too.

How could this be done?

 

Thanks

 

Stu

[Tommy L]

You could use a tile material in the bump slot. This will enable a separate map inside the tile.

[WAcky]

I'd say use the gradient ramp for your bump map. Set it to solid then you can put in bump maps into each key.

 

Or use the tile map

[Nic H]

you can use a vray comptex as well

[Peter M. Gruhn]

I like to use RGB Multiply for this problem.

 

But I think I'm going to start using Composite map.

[Jimy]

Or you could just combine everything in one bump file in Photoshop, just adjust the black to white intensity on different layers to bump more or less in different parts?