Noise Library v1.2

MyPad · Oct 14, 2019

This … is quite an unusual resource in the Spells section. An algorithm of sorts that normally doesn't pertain to the usual ideas centered around spells. I'll reserve judgment to @Dr Super Good and @Frotty.

Frotty · Oct 14, 2019

Cool, Wurst code looks good from a first viewing. `lerp` already exists as `linear` in the Interpolation package.
Is there a git repo for it, so it can be used as dependency via grill? If not, that would be a nice addition.
Thumbs up for covering all scripting languages :thumbs_up:

Drake53 · Oct 14, 2019

Frotty said:
Thumbs up for covering all scripting languages

You sure you're not forgetting something? Don't worry though, I got you covered.

C#:

    [NativeLuaMemberContainer]
    internal static class PerlinNoise
    {
        [NativeLuaMember("Noise.perlin1D")]
        public static extern float Noise(float x);

        [NativeLuaMember("Noise.perlin2D")]
        public static extern float Noise(float x, float y);

        [NativeLuaMember("Noise.perlin3D")]
        public static extern float Noise(float x, float y, float z);

        [NativeLuaMember("Noise.permutationInit")]
        public static extern void Init();
    }

It's probably more efficient like this anyways, compared to writing the entire library in C#.

Also, spotted a small mistake here:

Lua:

function Noise.perlin1D (x, y, z)

Glint · Oct 14, 2019

Frotty said:
Is there a git repo for it, so it can be used as dependency via grill? If not, that would be a nice addition.

I'll work on that one. I was just to upload the source code in Github.

Frotty said:
`lerp` already exists as `linear` in the Interpolation package.

Oh my, I even remember using it before. Well, I'm gonna update that one once I upload it to git.

Drake53 said:
Also, spotted a small mistake here:

Lua:

function Noise.perlin1D (x, y, z)

Nice catch! I caught another one as well.

Lua:

function Noise.grad1D (hash, x, y)

I updated the Lua version to 1.0.1.

Glint · Oct 15, 2019

JASS, vJASS and Lua now have a git repository.

Updated Wurst version to 1.0.1.
- Removed lerp() and used the one in the standard library: real.lerp()

Also for Wurst, you can now use Grill to add wurstNoiselib as a dependency to your project.

Code:

grill install https://github.com/eGlint/wurstNoiselib
grill install

Chaosy · Jan 11, 2020

Underrated dedication to multiple languages.

I do not have use for this right now, but I will try to keep it in mind in the future

Frotty · Jan 11, 2020

Glint said:
Also for Wurst, you can now use Grill to add wurstNoiselib as a dependency to your project.

Code:

grill install https://github.com/eGlint/wurstNoiselib grill install

You don't need an 'install' after installing the dependency.
Other than that, good stuff

Glint · Jan 11, 2020

Frotty said:
You don't need an 'install' after installing the dependency.
Other than that, good stuff

Oh, thank you for the correction.

Cheezeman · Jan 11, 2020

The elements from 256 - 512 only repeats the values of the first 256 elements. I think it is to avoid overflow?

Iirc perlin says in the paper it is to align the array with memory or some such. He mentions it anyway.

Frotty · Jan 12, 2020

@MyPad Time to approve?!

Edy · Feb 18, 2020

1x1 pathing blockers and smaller tiles are the things that I hope for Wc3.
Good stuff

Kakerate · Mar 6, 2021

Good work man, I came upon this after a GDC talk about using perlin noise to generate camera shake. Thanks!

Glint · Apr 4, 2021

I just renamed this resource from Perlin Noise to Noise Library since it now features two different Noise functions for the new update (v1.1).

Check out the new changes especially the new function: 2D Open Simplex Noise.

stormstone00 · May 31, 2021

Great work man. Especially for using multiple programming languages.

Frotty · May 31, 2021

The lib had some big issues, which seem to be fixed now.
Can recommend now

Glint · Jun 2, 2021

Noise Library v1.2
Custom GenerateRandomPermutation and Bugfixes

Custom GenerateRandomPermutation

If you want to generate random values in the permutation table using your own random function, you can now do it:

JASS

vJASS

Lua

Wurst

JASS:

function MyGetRandomInt takes integer low, integer high returns integer
    // logic how random value is created
    return // output integer
endfunction

function MyGetRandomIntForNoiseLib takes nothing returns nothing
    set udg_NoiseGetRandomIntReturn = MyGetRandomInt(udg_NoiseGetRandomIntLow, udg_NoiseGetRandomIntHigh)
endfunction

function MyInitializer takes nothing returns nothing
   call GenerateRandomPermutationCustom(function MyGetRandomIntForNoiseLib)
endfunction

vJASS:

function MyGetRandomInt takes integer low, integer high returns integer
    // logic how random value is created
    return // output integer
endfunction

function MyGetRandomIntForNoiseLib takes nothing returns nothing
    set Noise.getRandomIntReturn = MyGetRandomInt(Noise.getRandomIntLow, Noise.getRandomIntHigh)
endfunction

function MyInitializer takes nothing returns nothing
   call GenerateRandomPermutationCustom(function MyGetRandomIntForNoiseLib)
endfunction

Lua:

function myGetRandomInt (low, high)
    -- logic how random value is created
    return -- output integer
end
Noise.generateRandomPermutation(myGetRandomInt)

Wurst:

let myCustomPrng = new MyCustomPRNG("Seed")
generateRandomPermutation (low, high) ->
     return myCustomPrng.getRandomInt(low, high)
destroy myCustomPrng

Initialization

The permutation and gradient tables of vJASS, Lua, and Wurst, are now initialized by default.

For JASS, you have to manually call InitNoise() in a trigger with map initialization or in the main section InitTrig_<Trigger Name> of the custom script with "Run on map initialization" enabled.

OpenSimplex 1.2.1 Update

Thanks to @Frotty and @kari0003, a major bug is fixed in Wurst's OpenSimplex. This fix is also applied in JASS, vJASS, and Lua.

Improved Noise 1.2.1 Update

Wurst's 2D Perlin Noise is now fixed as well.

Wurst

@kari0003 provided a code where you view Perlin Noise or OpenSimplex in a text form via unit test command in Visual Studio Code.

Deprecated Functions as of 1.2

The following functions will be removed in the next major update:

vJASS:

vJASS:

// struct Noise extends array
static method permutationInit takes nothing returns nothing // use Noise.initialize instead
static method openSimplexInit takes nothing returns nothing // use Noise.initialize instead

Lua:

function Noise.permutationInit () -- use Noise.initialize instead

Noise Library v1.2

JASS

vJASS

Lua

Wurst

JASS

vJASS

Lua

Wurst

[JASS] Noise Viewer (Map)

[Lua] Noise Viewer (Map)

[vJASS] Noise Viewer (Map)

[Wurst] Noise Viewer (Map)

JASS

vJASS

Lua

Wurst

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