GLSL中的拜耳矩阵抖动_C_JavaScript_下载.zip

# glsl-dither [](http://github.com/badges/stability-badges) Bayer matrix dithering in GLSL. Originally sourced from [@oosmoxiecode](http://github.com/oosmoxiecode)'s [C64 Shader Demo](http://oos.moxiecode.com/js_webgl/c64_shader/), which in turn was based on the implementation in [this article](http://devlog-martinsh.blogspot.se/2011/03/glsl-8x8-bayer-matrix-dithering.html). [](http://hughsk.io/glsl-dither) ## Usage [](https://nodei.co/npm/glsl-dither/) Each dithering function takes two arguments: * `pos`: the position of the current pixel – you can use `gl_FragCoord.xy` directly in most cases. * `brightness`: the current pixel's brightness, either as a `float` or a `vec3|vec4` color directly. The returned value will be the same type as the `brightness` parameter. ### `dither8x8(vec2 pos, vec3|vec4|float brightness)` Dither using a 8x8 matrix. ### `dither4x4(vec2 pos, vec3|vec4|float brightness)` Dither using a 4x4 matrix. ### `dither2x2(vec2 pos, vec3|vec4|float brightness)` Dither using a 2x2 matrix. ``` glsl precision mediump float; uniform sampler2D uTexture; varying vec2 vUv; // Use any of the following: #pragma glslify: dither = require(glsl-dither) #pragma glslify: dither = require(glsl-dither/8x8) #pragma glslify: dither = require(glsl-dither/4x4) #pragma glslify: dither = require(glsl-dither/2x2) void main() { vec4 color = texture2D(uTexture, vUv); gl_FragColor = dither(gl_FragCoord.xy, color); } ``` ## License MIT. See [LICENSE.md](http://github.com/hughsk/glsl-dither/blob/master/LICENSE.md) for details.