Generates a two-dimensional noise field isolated to width and height (non-continuous noise).

May 23, 2015 · float fl = floor(p); float fc = fract(p); return mix(rand(fl), rand(fl + 1.0), fc); const vec2 d = vec2(0.0, 1.0); vec2 b = floor(n), f = smoothstep(vec2(0.0), vec2(1.0), fract(n)); return mix(mix(rand(b), rand(b + d.yx), f.x), mix(rand(b + d.xy), rand(b + d.yy), f.x), f.y); return fract(sin(dot(n, vec2(12.9898, 4.1414))) * 43758.5453);

var noise = require ("noise3d"); var perlin = noise. createPerlin ({interpolation: noise. interpolation. linear, permutation: noise. array. shuffle (noise. array. range (0, 255), Math. random)}); var brownian = noise. createBrownianMotion ({octaves: 4, persistence: 0.5, noise: perlin}); for (var x = 0; x < 512; x ++) {for (var y = 0; y < 512; y ...

tooloud.Fractal.noise accepts five arguments: x, y and z coordinates; number of octaves; a noise function you want to apply fractal noise to; You can simply pass the desired noise function to your fractal noise like this:

I've built a javascript app that renders Perlin and Simplex noise to an HTML5 canvas, check it out here: http://lencinhaus.github.io/canvas-noise The app allows you to tweak every parameter involved in noise calculation and rendering and to save the resulting texture.

Nov 24, 2018 · I have to calculate the volume of an STL file, I successfully got the sizes of the model with var box = new THREE.Box3().setFromObject( mesh ); var sizes = box.getSize(); but I just can't wrap my head around the concept of calculating it.

Generates a two-dimensional noise field formed around a three-dimensional cylinder, such that it is continuous across the x-boundaries. makeLine(length, noise1, options?): number[] length: number

Apr 24, 2014 · Here is how I calculate volume of object (exactly like in link in 1st post): var v321 = p3.x*p2.y*p1.z; var v231 = p2.x*p3.y*p1.z; var v312 = p3.x*p1.y*p2.z; var v132 = p1.x*p3.y*p2.z; var v213 = p2.x*p1.y*p3.z; var v123 = p1.x*p2.y*p3.z; return (-v321 + v231 + v312 - v132 - v213 + v123)/6.0; var volumes = 0.0;

May 2, 2020 · The really cool thing about SDFs is how easy it is to distort the surface by just addding some noise to the SDF. So lets slap some fractal brownian motion (fBM) noise ontop using the position to index into the noise function.

Useful for CPU based raytracers and as building blocks for procedural art and textures. The noises are optimized for speed. Most noises are available in all 4 dimensions (1D, 2D, 3D, 4D), some are only available in specific dimensions (or are still under development).