Tiling noise maps?

[Tommy L]

I hjave a problem with tiling in displacement using noise map.

Why do noise maps tile? I thought they kept generating random patterns over an object.

 

Anyway, Ive attached a swatch. Im doing a 32k wide render of ocean for an ad. As you can see, there are diagonal lines spoiling the party.

 

Any suggestions very welcome. This thing takes a while to render and I'd like to fix this issue before losing another night.

 

Thanks,

Tom.

[Tommy L]

I tested the noise map from turbulence to fractal and regular, both are ok. Just the turbulence tiles. Which is a bummer, because its the one that looks most realistic.

[notamondayfan]

I would just use mix maps, vraycomptexture, blends, etc to add more variation if you want to do it all procedurally. Other than that, use photoshop, render, clouds, then go from there.

 

Dean

[Fran]

Tom, are you tiling the map in the noise map parameters or with uv mapping? Do you get a better result if you reduce the scale parameter rather than tile it? Also, what is the size of your object?

[Jonathan Sanchez]

Hey Tommy

I also recently had the same issue with the max "tile" map. It too would tile itself every odd number of seams, there would be a bigger more noticeable seam. Don't remember what I did to fix it, think had to play with the tiling numbers.

[Tommy L]

Dean, I like the effect of the turbulence bump. It just shouldn't tile.

Fran, noise size is 300. Object is 32000 feet across, uwv planar map scaled to fit. Changing the scale parameter (noise size) does affect tiling logically but doesnt offer an option to change noise 'detail' if you will, so the scale is kind of non-arbitrary. Im sure Im missing something.

 

My plan was to use turbulence to get the major displacements and put smaller detail on the waves with noise maps in the bump channel (mix map with same turbulence driving the mix then regular bumps in mix channels). Turbulence really does look like waves. I just need it not to tile!

 

Anyway, project delivered this morning (at 32000 pixels across) with fractal waves. Client loves it (Mexican beer ad...) but I'd still like to know a solution for next time.