How do you try different random seeds for noise texture node?

Question

Using Blender 2.76 and cycles, I'm trying to color an object with the Noise Texture node, among others. The resulting object looks like this:

I'm happy with the basic colors, but I'd like to try different random seeds, to see different distributions of the green and blue. But I don't see a field for such a seed on the node.

Is there a way to do this? I tried putting some things into the Vector input, but it only zeroed out the noise. I don't understand that input yet.

Check out my explanation of texture mapping here. – PGmath Jan 06 '16 at 22:06 — PGmath, Jan 06 '16 at 22:06

score 6 · Accepted Answer · edited Apr 13 '17 at 12:57

6

This doesn't really change the seed, but you can get a different noise pattern by translating the whole texture by a significant amount.

enter image description here

The Suzanne on the left uses a noise texture with default settings and mapping coordinates. The Suzanne on the right uses the same noise texture, but uses the below nodes to shift the texture coordinates to get a different noise pattern.

enter image description here

For the sake of space i am using my homemade translate node but you could just as well use a mapping node as well.

edited Apr 13 '17 at 12:57

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answered Jan 06 '16 at 22:19

PGmath

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Perfect, that's what I was looking for. That's even better than a seed, actually, because you can make minor adjustments too. – Rob N Jan 06 '16 at 23:43
You could introduce an object info -> random node to this setup, to have it, well, more random. – MSchmits Jan 08 '16 at 07:52
@MSchmits The Object Info node's random output is per-object. I believe the OP wants to manually adjust the seed to adjust the pattern on a single object. – PGmath Jan 08 '16 at 14:21

score 3 · Answer 2 · edited Feb 25 '21 at 00:45

I added a node Input > Object Info,
and linked the Random value to the Location value of a Vector > Mapping node
Your texture UV (or simply Input > UV) goes into the Mapping node's Vector value,
and the output of the Mapping node goes into the Vector of my Noise Texture.

That worked very nicely and I didn't have to make my materials single user - just cloned my objects and it worked.

The Random output generates a value in the 0 - 1 range for each object. If you want to increase the random range you can use a Math > Multiply node.

How do you try different random seeds for noise texture node?

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