# Material function "noise" in blueprints?

**URL:** <https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544>\
**Category:** Blueprint\
**Tags:** noise, unreal-engine, Blueprint, question\
**Created:** [October 16, 2015, 5:58pm UTC](https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544 "2015-10-16T17:58:02Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![StreakyCat](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@StreakyCat](https://forums.unrealengine.com/u/StreakyCat)\
**Post date:** [October 16, 2015, 5:58pm UTC](https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544/1 "2015-10-16T17:58:02Z")

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Is there a way to access the “noise” node from the material editor inside blueprints?

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**Author:** ![MrGrr](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@MrGrr](https://forums.unrealengine.com/u/MrGrr)\
**Post date:** [October 16, 2015, 10:26pm UTC](https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544/2 "2015-10-16T22:26:56Z")

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Thats a material function, so no.

What are you trying to acheive?

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**Author:** ![StreakyCat](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@StreakyCat](https://forums.unrealengine.com/u/StreakyCat)\
**Post date:** [October 17, 2015, 4:19pm UTC](https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544/3 "2015-10-17T16:19:30Z")

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I use the noise function to generate a dynamic heighmap, which is used as a vertex offset for a fluid surface.

Now i want objects to float on in, and therefore need to access the heightmap somehow,  
my idea was to run the same noise function inside a blueprint (with the same input parameters).

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<div class="post-metadata">

**Author:** ![MrGrr](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@MrGrr](https://forums.unrealengine.com/u/MrGrr)\
**Post date:** [October 21, 2015, 10:09am UTC](https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544/4 "2015-10-21T10:09:12Z")

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Ah. So this.

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>
> After over a year in maintenance mode, the official Unreal Engine Wiki is now permanently offline. These resources now live on a new community-run Unreal Engine Community Wiki — ue4community.wiki! You will be able to find content from the official...

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<div class="post-metadata">

**Author:** ![MrGrr](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@MrGrr](https://forums.unrealengine.com/u/MrGrr)\
**Post date:** [October 21, 2015, 10:09am UTC](https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544/5 "2015-10-21T10:09:48Z")

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Example video made by “Handkor” [UE4 Material Driven Dynamic Physical Water Test - YouTube](https://www.youtube.com/watch?v=7_cFo8-RkaA)

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**Author:** ![StreakyCat](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@StreakyCat](https://forums.unrealengine.com/u/StreakyCat)\
**Post date:** [October 21, 2015, 12:44pm UTC](https://forums.unrealengine.com/t/material-function-noise-in-blueprints/335544/6 "2015-10-21T12:44:38Z")

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I know the video, thats the effect i want.

I did it by not using a noise function node and going Gerstner Waves, making a redundand code (same material node and c++ code) for the heightmap calculation.

As of now, it is not possible to get access to the noise functions form materials.