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    glsl-constants
    TypeScript icon, indicating that this package has built-in type declarations

    2.0.0 • Public • Published

    glsl-constants

    npm version stability-stable npm minzipped size dependencies types Conventional Commits styled with prettier linted with eslint license

    Common GLSL math constants (with 11 decimals) available both as ES modules strings and as GLSL files for use with glslify.

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    Installation

    npm install glsl-constants

    Usage

    ESM

    import * as glslConstants from "glsl-constants";
    import * as glslRotate from "glsl-rotate";
    
    const shader = /* glsl */ `
    ${glslConstants.GAMMA}
    ${glslConstants.RECIPROCAL_GAMMA}
    ${glslConstants.TAU}
    ${glslConstants.PI}
    ${glslConstants.HALF_PI}
    ${glslConstants.QUARTER_PI}
    ${glslConstants.RECIPROCAL_PI}
    ${glslConstants.RECIPROCAL_TAU}
    ${glslConstants.TO_RADIANS}
    ${glslConstants.TO_DEGREES}
    
    // ...
    
    vec3 toGamma(vec3 v) {
      return pow(v, vec3(RECIPROCAL_GAMMA));
    }
    
    ${glslRotate.rotate}
    
    void main() {
      vec2 p2d = vec2(1.0, 0.0);
      p2d = rotate(p2d, TAU);
      p2d = rotate(p2d, PI);
      p2d = rotate(p2d, HALF_PI);
      p2d = rotate(p2d, QUARTER_PI);
      p2d = rotate(p2d, PHI);
      p2d = rotate(p2d, RECIPROCAL_PI);
      p2d = rotate(p2d, RECIPROCAL_TAU);
      p2d = rotate(p2d, 90.0 * TO_RADIANS);
    
      // ...
      gl_FragColor.rgb = toGamma(color.rgb);
    }
    `;

    glslify

    #pragma glslify: GAMMA = require(glsl-constants/GAMMA)
    #pragma glslify: TAU = require(glsl-constants/TAU)
    #pragma glslify: PI = require(glsl-constants/PI)
    #pragma glslify: HALF_PI = require(glsl-constants/HALF_PI)
    #pragma glslify: QUARTER_PI = require(glsl-constants/QUARTER_PI)
    #pragma glslify: PHI = require(glsl-constants/PHI)
    #pragma glslify: RECIPROCAL_PI = require(glsl-constants/RECIPROCAL_PI)
    #pragma glslify: RECIPROCAL_TAU = require(glsl-constants/RECIPROCAL_TAU)
    #pragma glslify: TO_RADIANS = require(glsl-constants/TO_RADIANS)
    #pragma glslify: TO_DEGREES = require(glsl-constants/TO_DEGREES)
    
    // ...
    
    vec3 toGamma(vec3 v) {
      return pow(v, vec3(RECIPROCAL_GAMMA));
    }
    
    #pragma glslify: rotate = require(glsl-rotate)
    
    void main() {
      vec2 p2d = vec2(1.0, 0.0);
      p2d = rotate(p2d, TAU);
      p2d = rotate(p2d, PI);
      p2d = rotate(p2d, HALF_PI);
      p2d = rotate(p2d, QUARTER_PI);
      p2d = rotate(p2d, PHI);
      p2d = rotate(p2d, RECIPROCAL_PI);
      p2d = rotate(p2d, RECIPROCAL_TAU);
      p2d = rotate(p2d, 90.0 * TO_RADIANS);
    
      // ...
      gl_FragColor.rgb = toGamma(color.rgb);
    }

    License

    MIT. See license file.

    Install

    npm i glsl-constants

    DownloadsWeekly Downloads

    8

    Version

    2.0.0

    License

    MIT

    Unpacked Size

    10.7 kB

    Total Files

    39

    Last publish

    Collaborators

    • dmnsgn