gl-react/lib/GLSL.js

Universal React library, write and compose WebGL shaders, implement complex effects using a descriptive paradigm

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GLSLSymbol = void 0;
exports.default = GLSL;
const GLSLSymbol = "GLSL";
/**
 * object created by **GLSL``** string template
 */

exports.GLSLSymbol = GLSLSymbol;

/**
 * GLSL string template to write your shader.
 * The library use a string template for esthetic reason (e.g. syntax color support) but also so we can more strongly type things.
 * Note that later, we might do static analysis to generate at compile time the uniform types for instance.
 * See [GLSL spec](http://www.khronos.org/registry/gles/specs/2.0/GLSL_ES_Specification_1.0.17.pdf).
 *
 * @return {GLSLCode}, an object you can give to `Shaders.create`'s `frag`.
 * @example
 * GLSL`
 * precision highp float;
 * varying vec2 uv;
 * void main() {
 *   gl_FragColor = vec4(uv.x, uv.y, 0.5, 1.0);
 * }
 * `
 */
function GLSL(strings, ...values) {
  let code = "";

  for (let i = 0; i < strings.length; i++) {
    code += (i === 0 ? "" : values[i - 1]) + strings[i];
  }

  return code;
}
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