Char

Char.json

{
  "frag": "#ifdef GL_ES\nprecision mediump float;\n#endif\n\nuniform vec2    u_resolution;\nuniform vec2    u_mouse;\nuniform float   u_time;\n\n#include \"lygia/draw/char.glsl\"\n#include \"lygia/generative/random.glsl\"\n\nvoid main(void) {\n    vec4 color = vec4(vec3(0.0), 1.0);\n    vec2 pixel = 1.0/u_resolution.xy;\n    vec2 st = gl_FragCoord.xy * pixel;\n    \n\n    int char_code[13];\n    char_code[0] = CHAR_H;\n    char_code[1] = CHAR_E;\n    char_code[2] = CHAR_L;\n    char_code[3] = CHAR_L;\n    char_code[4] = CHAR_O;\n    char_code[5] = CHAR_COMMA;\n    char_code[6] = CHAR_SPACE;\n    char_code[7] = CHAR_W;\n    char_code[8] = CHAR_O;\n    char_code[9] = CHAR_R;\n    char_code[10] = CHAR_L;\n    char_code[11] = CHAR_D;\n    char_code[12] = CHAR_EXCLAMATION;\n\n    st *= vec2(13.0, 8.0);\n    vec2 st_f = fract(st);\n    vec2 st_i = floor(st);\n\n    int index = int(st_i.x);\n\n    // #if defined(PLATFORM_WEBGL)\n    int c = 0;\n    for (int i = 0; i < 13; i++) {\n        if (i == index) \n            c = char_code[i];\n    }\n    // #else\n    // int c = char_code[index];\n    // #endif\n\n    color.rgb += char(st_f, c) * (st_i.y / 8.0);\n\n    gl_FragColor = color;\n}\n",
  "vert": "#ifdef GL_ES\nprecision mediump float;\n#endif\n\nattribute vec4 a_position;\nvarying vec4 v_position;\n\nvoid main() {\n    v_position = a_position;\n    gl_Position = a_position;\n}\n",
  "commands": [
    "plot,off",
    "textures,off",
    "buffers,off",
    "cubemap,off",
    "camera_position,-0,-0,-2",
    "camera_look_at,0,0,0",
    "camera,default"
  ],
  "assets": {},
  "history": [
    {
      "gistId": "38226dd10b4baeaf889a80c5ecc59d06",
      "owner": {
        "login": "patriciogonzalezvivo",
        "id": 346914,
        "avatar_url": "https://avatars.githubusercontent.com/u/346914?v=4"
      },
      "loadedAt": "2026-02-17T18:15:15.181Z"
    }
  ]
}