Question Fast Unity.Mathematics.Random Seed

Hi!
what is the fastest way to get a random uint as seed for the Random method from the Mathematics package.
should i just read the system time and put it in as uint or is the level time maybe faster?

my method would look like this for getting the random.

Code (CSharp):

1.  
2.     [BurstCompile]
3.     public static Unity.Mathematics.Random GetRandom()
4.     {
5.         return new Unity.Mathematics.Random(  UINT VALUE HERE );
6.     }
7.  

my thought was, to replace with it the most Unity Engine Random.Range , because its faster this way but maybe i can be wrong?

thanks for your help!

 

If you need to know, then I'd write a script which does each one a few thousand times and check the speed on my target device in a release build, with System.Diagnostics.Stopwatch. If you can't tell the difference then it doesn't matter.

That being said, with common strategies for getting and using random numbers in games you'd pre-generate a seed for each system and re-use it, rather than getting a new one each time, which means that it doesn't matter how fast it is to generate one. The benefit is that you can then re-use seeds for debugging and other purposes where determinism is useful.

For instance, instead of "bug X happens once per approximately 10 casts of this spell" it can be "with seed 123, bug X happens on the 7th, 19th, 34th... casts of this spell".

 

a same seed would mean everyone of the game would be the same and there is no random.
so i need maybe to generate a new seed everytime in call the method. but i think i take the Time.realtimeSinceStartup from unity and use this as seed, this do the job i want.

 

You can generate it at initialisation time, i.e. when your game loads, as opposed to once per random number.