2.3 2D Simplex noise 2D单纯形噪声。 // https://www.shadertoy.com/view/Msf3WH// simplex noisevec2hash(vec2p)// replace this by something better{p=vec2(dot(p,vec2(127.1,311.7)),dot(p,vec2(269.5,183.3)));return-1.0+2.0*fract(sin(p)*43758.5453123);}floatnoise(invec2p){constfloatK1...
Matt explains the math behind GLSL noise by using an example of wave functions and their frequency, amplitude, and phase, that apply a function returning random values.
noise2D.glsl - 2D simplex noise float snoise(vec2 x). Very fast, very compact code. noise3D.glsl - 3D simplex noise float snoise(vec3 x). Fast, compact code. noise4D.glsl - 4D simplex noise float snoise(vec4 x). Reasonably fast, reasonably compact code. classicnoise2D.glsl - 2D...
在GLSL(OpenGL Shading Language)中,`noise3` 函数是用于生成三维空间中的柏林噪声(Perlin Noise)的函数之一。柏林噪声是一种具有连续性和随机性的函数,常用于纹理生成、地形生成等领域。 `noise3` 函数通常接受一个三维的向量作为输入参数,并返回对应位置的柏林噪声值。它可以用于在着色器中创建逼真的纹理效果、仿真...
WebGL 中 glsl noise的一个应用: 水流波浪荡漾的感觉 demo: http://www.artvily.com/palette?sample=palette&clip=noise_01 见下图
We present GLSL implementations of Perlin noise and Perlin simplex noise that run fast enough for practical consideration on current generation GPU hardware. The key benefits are that the functions are purely computational (i.e., they use neither textures nor lookup tables) and that they are ...
在noiseList.json 内更新 特性组件路径和 glsl 文件路径; 增加noiseName.glsl 文件; 根据1 中的引用数据名字,增加 NoiseName.jsx 特性组件; 根据1 中的引用数据名字,增加 NoiseNameParamsSlice.js 文件; 根据2 中的文件名字,在 store.js 内做相应的引用配置; 更新PropsUniforms.js 和FrameUniforms.js。 在Noise...
The final vertex shader is almost the same, but we're adding a time factor to the noise lookup, so it moves with time. Mesh distortion over time GLSL - vertex shader // Include the Ashima code here! varying vec2 vUv; varying float noise; ...
Simplex noise is easy to implement in hardware For a detailed explanation about simplex noise, here is a nice PDF:Simplex noise demystified. Here is athreadon OpenGL forum about this topic. As usual, I quickly coded a smallGeeXLabdemo to test the simplex noise GLSL shader. The demo is avai...
WebGL 中 glsl noise的一个应用: 水流波浪荡漾的感觉 demo: http://www.artvily.com/palette?sample=palette&clip=noise_01 见下图