October 2016
Intermediate to advanced
452 pages
9h 47m
English
Content preview from Unreal Engine 4 Scripting with C++ CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Randomness – Perlin noise
Some shaders benefit from the ability to use random values. Each Material has a few nodes that can help add randomness to a shader. Randomness from a Perlin noise texture can be used to generate interesting-looking materials such as marbled materials. The noise can also be used to drive bump maps, height maps, and displacement fields for some neat effects.
Getting ready
Choose a material to which you'd like to add some randomness. Open the Material in the Material Editor, and follow the steps.
How to do it...
- Insert a Noise node into your Material Editor window.
- Normalize the coordinates of the object you're adding the noise to. You can use math such as the following to do so:
- Subtract the minimum from each processed vertex ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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