WEBGL TESSELLATION TRIANGLE TWIST FULL
WEBGL TESSELLATION TRIANGLE TWIST PLUS

Investigate MurMurHash3's avalanche mixer (not the whole thing). You can make much faster coherent hashing than Stephan Gustafasen's noise, which has several issues: Built around assumptions about GPUs and GPU compilers that are decades old a this point, and are not backed by research and conformance tests.

WEBGL TESSELLATION TRIANGLE TWIST FULL

Right now most AMD gpus and only Turing and Volta Nvidia GPUs have full throughput integer performance. Hashing is often what breaks things in terms of performance, your hashing function could be faster, but it is heavily going to be GPU dependent until most GPUs have full throughput int performance. (Similar to the issue with Perlin noise, but without all of the square bias.) The added 'PlaneFirst' lattice orientation, which aims to make the X/Y plane look better, also works better than in OpenSimplex, because there is less visible difference between different planes as you move up the third axis. This 3D function is based off of the same concept as the one used in FastSimplexStyleNoise. The 3D function is a little bit better looking than in OpenSimplex, because there is less visible difference between different parts of the noise. SuperSimplex is about the same speed as optimized OpenSimplex, and faster than the original OpenSimplex. But the provided 3D function is actually a different type of function, that produces the desired effect in 3D. Each is about the same speed as (the optimized versions of) what it aims to replace.įastSimplexStyleNoise is the faster noise, about as fast as common Simplex implementations.

SuperSimplex is smooth like OpenSimplex, and FastSimplexStyleNoise is bubbly like Simplex. I have added PlaneFirst to OpenSimplex as well, but the results aren't quite as nice for it. It is recommended to use noise3_PlaneFirst wherever appropriate. The third axis of noise3_PlaneFirst also repeats on an interval of 2048*sqrt(3). noise3_Classic emulates traditional Simplex-style noise, while noise3_PlaneFirst makes the X/Y plane look better and leaves the third axis to be the vertical direction (terrain) or the time direction (animation). The 3D functions are split up into noise3_Classic and noise3_PlaneFirst. SuperSimplexNoise.java finds the closest four points on the cube cell of each lattice, and FastSimplexStyleNoise.java finds the closest two.

The lattices are rotated to avoid their worst planes being exposed in cardinal slices such as noise(x, y, 0). This is isomorphic to Simplex 3D, but uses a completely different set of formulas and procedures in its construction. The 3D functions are based off of an explicitly-constructed Body-Centered-Cubic lattice, using two overlapping cubic lattices.

Glsl/bccNoise4Point.glsl and glsl/bccNoise8Point.glsl contain GLSL implementations of the 3D functions in FastSimplexStyleNoise.java and SuperSimplexNoise.java, respectively. Java/OpenSimplexNoiseLegacy.java contains the 2D, 3D, and 4D legacy/pre-optimized OpenSimplex, with new gradient sets. Java/OpenSimplexNoise.java contains the 2D, 3D, and 4D optimized OpenSimplex by DigitalShadow, with new gradient sets, ported back to Java Java/FastSimplexStyleNoise.java contains 2D and 3D functions that surpass FastNoise.java Simplex in performance, and serve as replacements to Simplex where speed is important.

Java/SuperSimplexNoise.java contains 2D and 3D functions with similar performance and smoothness to optimized OpenSimplex, but the 3D function is more uniform due to its better lattice structure. I've also included GLSL versions of each of the new 3D noises.

WEBGL TESSELLATION TRIANGLE TWIST PLUS

I created a repo with the two new noise classes, plus two versions of OpenSimplex that use the new gradient set.

Webgl tessellation triangle twist