March 2016
Beginner
188 pages
4h 8m
English
Content preview from Unreal Engine 4 AI Programming EssentialsBecome 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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RandomStream in Unreal Engine 4
Say you want to freeze the randomly generated trees you've made. Typically, when using a random node from UE4's artillery, this information will be lost once you exit the game. With RandomStream, you can actually save the seed that generated the random output and load the same random output by calling on this seed. So in UE4, you will find a blueprint node called Make RandomStream. This node has one input pin called Initial Seed.
The reason we use a seed is because this is a pseudo random-number generator. This means that the numbers are calculated and are deterministic. Pseudo means that we will use algorithms to calculate the randomness; however, by calculating the randomness, we technically know what it will be ...
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