Noise-Extras
FastNoise
Noise-Extras | FastNoise | |
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22 | 57 | |
23 | 2,561 | |
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4.4 | 7.7 | |
3 months ago | about 1 month ago | |
Java | Rust | |
Creative Commons Zero v1.0 Universal | MIT License |
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Noise-Extras
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how to stack noise layers for more interesting landscape
If it helps, I wrote an implementation inspired by this here: https://github.com/KdotJPG/Noise-Extras/blob/master/OpenSimplex2S_Exp.java
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While working on my game I made a highly optimized Noise Library for C#, I just made it open-source!
Periodicity is definitely a limitation of Simplex, at least without complicated skew adjustments. I wouldn't say this limitation should hold the noise back for non-periodic applications, but it certainly can't be ignored when it does come to them.
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How can I Make a Procedural 2d Map that Loops at Borders?
Yep! You also need to slightly adjust the grid skew so that the corners of your target square/rectangle coincide with vertices on the noise grid. Example implementation: https://github.com/KdotJPG/Noise-Extras/blob/master/OpenSimplex2S_ImprovedXZPlanes_TileableXZ.java
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Does anyone have a good library for Exponential Distributed Noise and/or Amortized Noise with derivatives in c#?
I have this https://github.com/KdotJPG/Noise-Extras/blob/master/OpenSimplex2S_Exp.java but it's up to you whether or not you'd consider it a good library.
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New Blog Post! "The Perlin Problem: Moving Past Square Noise"
Tileability is an issue, you're right. Perhaps I should have made a note on that in the article. I've made some progress in the code at this link to bring proper tileability to simplex-type. It's quite usable as-is, but it does still need work to become the best it can. In particular I need to take a closer look at performance (I accounted hard for the grid re-skewing in a way that won't make much difference given a sufficiently-large repeat period), configurability (tileable in either 2 or 3 axes), quality (mostly I could improve the primes in the hash function I used), and variety (bring this to more algos/dimensionalities).
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Wind direction from noise map?
Either way /u/pds314 I would look for a good simplex-type noise impl that supports derivatives. Here's one. Alternatively, here's a domain-rotated Perlin which addresses its square artifacts by rotating them out of the evaluation plane of focus through the extra dimension. In this, use X and Y of the 3D "ImproveXY" function" or X and Z of the 3D "ImproveXZ" function for derivatives. In the OpenSimplex2S, you can just use the 2D function with derivatives.
- Noisy map, but smooth beaches! My new algorithm!
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Added 3D Noise and Blend Modes to my GLSL Noise library (gl-Noise)! Used it to make a Planet Generator. Demo and GitHub in comments!
Code for the domain rotation in Java is here. There are various wrappers. You would want one of the methods noise4_ImproveXYZ_ImproveXY, noise4_ImproveXYZ_ImproveXZ, or noise4_ImproveXYZ. You could copy the code from these wrappers directly, or convert it to matrix form to write it compactly in GLSL. For example, noise4_ImproveXYZ_ImproveXZ would be this. Note that I'm using left multiplication so the column-major constructor format can be rearranged to show up the way you would typically write the matrix when doing linear algebra if doing right multiplication.
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How do I avoid the "2^64 variations of one continent" problem?
Depends on: this. Would also work well with this, or also this if you adapt to its features.
- Perlin noise Voxel planets + Caves
FastNoise
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Using FastNoiseLite (or any GLSL library) in a shader.
If you go to the FastNoiseLite github you'll see there's a FastNoiseLite.glsl file, this file contains the entire library. So to use this in a shader we need to use the new shader #inlude preprocessor. In short, create a new ShaderInclude resource, paste the contents of the FastNoiseLite.glsl file into it and then simply #include it in your shader.
- Procedural terrain generation that isn't so bumpy?
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While working on my game I made a highly optimized Noise Library for C#, I just made it open-source!
FastNoiseLite: ValueNoise, OpenSimplex2, OpenSimplex2S, Perlin, ValueCubic (from https://github.com/Auburn/FastNoiseLite )
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Experimenting with shaped islands and Perlin noise. Video link below.
Fair enough. If it helps, you can drop this into a P5.js sketch without too much friction: https://github.com/Auburn/FastNoiseLite/tree/master/JavaScript
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Has anyone written "Idiot's Guide To FastNoiseLite"?
I suppose I'll compile what I can find here for future searchers: Here's the original github for FNL , it has some images to use as examples but few explanations unless you want to download and run the preview program yourself.
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perlin noise offset
Also take a look at FastNoiseLite if you want better control over noise generation, and for cool examples.
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My second procedural mesh attempt. No vegetation cover yet.
I used this repo: https://github.com/Auburn/FastNoiseLite
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Using noise seeds in a very large world.
Yeah, that's literally what a seed does. It's really odd to me that the unity mathematics one doesn't have a seed. I use this one: FastNoiseLite
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Has Anyone Created Noise (e.g. Perlin, OpenSimplex, etc.) in C# Using the GPU?
I really like this library which appears to have gals implementation. https://github.com/Auburn/FastNoiseLite
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I have created a floating point origin system for my game to allow the player to venture out far beyond what Unity allows for normally (roughly 5000 meters)
For the actual dunes I used fast noise lite ( https://github.com/Auburn/FastNoiseLite ). They have a nice gui app, where you can create noise textures (in my case voronoi noise). Then I apply the height map to the individual terrain tiles. So no fancy procedural Generation is going on here.
What are some alternatives?
TinyEngine - Tiny OpenGL Wrapper / 3D Engine in C++
FastNoise2 - Modular node graph based noise generation library using SIMD, C++17 and templates
gaseous-giganticus - This program procedurally generates gas giant cubemap textures for the game Space Nerds In Space. https://www.patreon.com/smcameron
OpenSimplex2 - Successors to OpenSimplex Noise, plus updated OpenSimplex.
webgl-noise - Procedural Noise Shader Routines compatible with WebGL
FastLED - The FastLED library for colored LED animation on Arduino. Please direct questions/requests for help to the FastLED Reddit community: http://fastled.io/r We'd like to use github "issues" just for tracking library bugs / enhancements.
LearnOpenGL - Code repository of all OpenGL chapters from the book and its accompanying website https://learnopengl.com
world - A set of tools for wide world generation and manipulation
Scattered-Biome-Blender - Smooth transitions over biome borders using scattered point evaluations.
3DWorld - 3D Procedural Game Engine Using OpenGL