Noise functions with exposed parameters (download)

Obscura

I've been working with the "noise" node many times in Unreal because its very useful for quick iteration or high quality output without flipbooks and whatnot, however there was always a big limit for me, which is the not exposed parameters, so I decided to make some material functions encapsuling hlsl custom nodes, which allows you to control the parameters via material instances, and dynamic parameters. I included all the computational noises,plus the texture based simplex one. They are broken down into a per function base, because an all in one would result in 4k instructions... This way you can have them fairly cheap, and customizable with levels and other stuff exposed. I did not include "turbulence" parameter because that can be done be taking the absolute value of the result and originally it was in the main loop so I saved me some instructions.

Download link here:
https://gum.co/cBcX

Material functions preview compared to the original noise node with its inputs:


Voronoi is separated into qualities because of optimization reasons...
You can do "turbulence" like this:


Have fun, thanks for your support

Liubei

Hey, great stuff!

I'm not a great tech artist, so I was hoping you could enlighten me...

How do I get my perlin noise to look like yours?

Obscura

Put an "abs" node after the material function. The black pixels you are seeing are negative values. Taking the absolute value of them means the sign is removed from the values so they become positive.

Liubei

Awesome, thanks!

RetrOtreK_

Hello

Please How do I chainge the scale of the noise. 

Thank you..

Edit..

Ok i found out how. cool...

Obscura

Still answering so if other people would have this question, they can see the answer. You can divide the position by some number before plugging it into the position input.

the_chip

Thanks alot for this!

Obscura

youre welcome.

lighthugger

The gumroad link is down, it'd be really nice to have a reupload 😅

benmerrick3d

I am also really interested in these. Is there a download link anywhere please?

ElllD

Hello, thank you for sharing this work with public. It looks extremely useful. Sadly I also came here too late for downloading it. Would be great if you could reupload it again, please 🙏

Would be even more awesome if you could add a tutorial about making it to your Patreon or a brief guideline on how to do it on our own 🙏🙏🙏 Or if you could add it to UE marketplace 🙏🙏🙏

iSCH

ElllD said:

Hello, thank you for sharing this work with public. It looks extremely useful. Sadly I also came here too late for downloading it. Would be great if you could reupload it again, please 🙏

Would be even more awesome if you could add a tutorial about making it to your Patreon or a brief guideline on how to do it on our own 🙏🙏🙏 Or if you could add it to UE marketplace 🙏🙏🙏

Currently you can achieve the same result with a custom HLSL node using: MaterialExpressionNoise(Position, Scale, Quality, Function, bTurbulence, Levels, OutputMin, OutputMax, LevelScale, FilterWidth, bTiling, RepeatSize)

It would work with every input as a scalar, but by default it is: (float) Scale, (int32) Quality, (uint8)NoiseFunction; (bool) bTurbulence, (int32) Levels, (float) OutputMin, (float) OutputMax, (float)LevelScale, (bool)bTiling, (uint32)RepeatSize. Position is a 2 to 3 dimensional vector and FilterWidth is a scalar.