Questions tagged [perlin-noise]
Perlin noise is an algorithmic (computer-generated) effect developed by Ken Perlin, often used for simulating elements in nature and for procedural terrain generation, especially in situations with low levels of memory. It is also pseudo-random, and can be in any number of dimensions. An improved version of this now exists, also developed by Ken Perlin, and also covered by this tag - simplex noise.
177 questions
0
votes
0
answers
81
views
Hashing gradient vector and unshuffled permutation table in perlin noise generator
I'm implementing perlin noise in C++. I have a permutation table for the gradients vectors and want to shuffle them with a 2 number hash that has 2 purposes. The hash uses the integer portion of the ...
1
vote
1
answer
340
views
How does real Perlin noise work?
I find lots of articles but they cut parts out to simplify the process. I am trying to write a function to generate real 3D Perlin noise without skipping steps like averaging the 4 corners ray somehow....
0
votes
0
answers
150
views
How to calculate 2D perlin noise for a procedural 3D surface?
I generate a mesh from a 3D perlin noise function, the goal now is to add a 2d perlin noise to the surface of the 3d mesh. My issue is ensuring continuity in the noise and taking the x, y and z ...
- 372
2
votes
2
answers
259
views
Is using values from a cryptographic hash function for Perlin/Simplex noise innapropriate?
The permutation maps are usually the numbers from 0 to 255 arranged in a random order. If I were to use a cryptographic hash function to convert a string, and then use the result's individual integers ...
user183738
1
vote
0
answers
67
views
Procedural fractal Perlin flow noise for mobile
I'm trying to use the Fractal Perlin flow noise from Chaos Software (shared under the MIT licence)
...
- 21
0
votes
1
answer
168
views
Why is my perlin-noise generated texture a uniform grey?
I'm following Brackeys' tutorial for perlin noise and i'm at the point where he's just done the offset thing but this whole time all that i'm seeing in my project is a plain gray square, no matter ...
0
votes
0
answers
242
views
Terrain Determination in Perlin Noise Texture in Godot 4.2.1
For my Grand Strategy game, I am looking to use maps generated by Godot's FastNoiseLite implementation of Perlin noise. While generating the texture for the map was ...
- 31
1
vote
3
answers
432
views
Add wobblyness to moving object
I've been working on a custom enemy "AI", the way it works is it generates a point inside a colliders bounds, then moves the enemy towards the point. Once the enemy reaches it. The point is ...
- 449
0
votes
1
answer
525
views
biome blending using multiple biome (altitude, humidity) points
I have a noise function for altitude: float getAltitude(x, z) and noise function for humidity: float getHumidity(x, z) and at each cell of my terrain I calculate a (altitude, humidity) point, and then ...
- 3
1
vote
1
answer
388
views
Why Does Offsetting Perlin Noise Cause Zooming In To No Longer Work?
I am creating a game in which a world map is generated using Perlin noise, and then specific points in the map are rendered using higher resolution Perlin noise. I am trying to do this by zooming in ...
- 13
2
votes
0
answers
190
views
Generating Coherent Noise for the Hyperbolic Plane
I've been doing research on game development in a hyperbolic plane, and cannot seem to find any solution for generating coherent noise.
Generating noise for a spherical geometry would be easy -- just ...
user172059
0
votes
2
answers
207
views
Perlin algorithm generates weird artifacts
I'm writing a Perlin noise generator in C++ for terrain generation but the generator produces weird JPEG-like artifacts instead of proper noise.
I've tried doing it using C# in Unity and confirmed the ...
- 11
0
votes
1
answer
564
views
Perlin noise terrain generation around given road mesh
I am generating terrain around a route. The route already exists. I am using the Perlin Noise function implemented in Unity to generate terrain tiles that merge seamlessly.
I generate the terrain ...
- 11
0
votes
1
answer
614
views
How to make a cubemap image with perlin noise?
Recently I just finished a program which makes a plane image using perlin noise. Now I want to make that image a cubemap image.
This because I want to apply it to a planet (which was made from a cube)...
-1
votes
1
answer
349
views
Using perlin noise as a procedural voxel heightmap without a texture atlas in Unity
I was creating a heightmap for my procedural voxel world in Unity using 2D perlin noise. I don't want to use anything from a texture atlas, a brown Unity material is good enough for me. The issue is ...
