Method _webGL2CompatibilityPrefix

src/webgl/p5.RendererGL.js:873–887

(shaderType, floatPrecision)

  }

  _webGL2CompatibilityPrefix(shaderType, floatPrecision) {
    let code = "";
    if (this.webglVersion === constants.WEBGL2) {
      code += "#version 300 es\n#define WEBGL2\n";
    }
    if (shaderType === "vert") {
      code += "#define VERTEX_SHADER\n";
    } else if (shaderType === "frag") {
      code += "#define FRAGMENT_SHADER\n";
    }
    if (floatPrecision) {
      code += `precision ${floatPrecision} float;\n`;
    }
    return code;
  }

  /*
   * WebGL-specific implementation of imageLight shader creation