Perlin Noise Material Editor

Unreal Engine Rendering
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#1

I tried using perlin noise to generate heightmap by combining a couple of functions on a different octaves as explained on http://freespace.virgin.net/hugo.elias/models/m_perlin.htm

http://freespace.virgin.net/hugo.elias/models/p_128.jpg

How do I use the Noise function on material editor to achieve that look?

22915-noise.png
22915-noise.png978×517 107 KB

The three noise function all have different levels, Thanks!

#2

Hey ernesernesto -

You will need to Clamp the output of the Noise to 0 to 1 (though you could also set the minimum Output to 0 as well). You will probably also need to add some smoothing through the Filterwidth and adjust your scale to way way below 1 (like 0.0575 gave me a good result). The Levels in the noise node refers to the levels of noise that the module is mixing to generate a noise field.

Here is what my material ended up looking like:

23000-noisemap.jpg
23000-noisemap.jpg1197×804 118 KB

Thank You

Eric Ketchum

#3

Thanks Eric!, I was able to get the result I want :slight_smile: thanks for your help!

#4

Hi Eric,

I hope you get a notification of this :wink: (didn’t see a contact option)

Do you have an answer for my Noise/Perlin problem? https://answers.unrealengine.com/questions/236199/using-perlin-noise-seems-to-result-in-same-materia.html

You seem quite knowledgable :slight_smile: thanks in advance!