# Mapping a specified number to an argument in Perlin Noise space

**URL:** <https://discourse.processing.org/t/mapping-a-specified-number-to-an-argument-in-perlin-noise-space/20747>\
**Category:** Coding Questions\
**Created:** [May 11, 2020, 11:37am UTC](https://discourse.processing.org/t/mapping-a-specified-number-to-an-argument-in-perlin-noise-space/20747 "2020-05-11T11:37:57Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![yajnya](https://avatars.discourse-cdn.com/v4/letter/y/97f17d/32.png) [@yajnya](https://discourse.processing.org/u/yajnya)\
**Post date:** [May 11, 2020, 11:37am UTC](https://discourse.processing.org/t/mapping-a-specified-number-to-an-argument-in-perlin-noise-space/20747/1 "2020-05-11T11:37:57Z")

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Hello everyone,  
I am very new to processing. recently, I watched The coding train’s 3d terrain generation using Pelrin noise tutorial.  
I am also trying to create a terrain consisting of mountains. However, I want my mountains to have heights specified by me, and the adjoining area between mountains to have a continuous, organic slope. I am trying to use Perlin noise for the adjoining area between mountains. However, I am unable to map the height of my mountains to the Perlin noise space. Please help.

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**Author:** ![jeremydouglass](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/jeremydouglass/32/20_2.png) [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)\
**Post date:** [May 14, 2020, 5:47am UTC](https://discourse.processing.org/t/mapping-a-specified-number-to-an-argument-in-perlin-noise-space/20747/2 "2020-05-14T05:47:12Z")

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You can combine a noise map with anything. If you apply cones to your perlin noise then you will get noisy cones. What do you want to combine them with?

You might consider watershedding / erosion

[https://discourse.processing.org/search?q=erosion](https://discourse.processing.org/search?q=erosion)