Method init

src/webgl/p5.Shader.js:499–520

* Creates, compiles, and links the shader based on its * sources for the vertex and fragment shaders (provided * to the constructor). Populates known attributes and * uniforms from the shader. * @chainable * @private

()

   * @private
   */
  init() {
    // If the shader is uninitialized or context was lost
    if (!this._initialized) {
      try {
        this._renderer._initShader(this); // Backend-specific shader init
      } catch (err) {
        throw new Error(
          `Whoops! Something went wrong initializing the shader:\n${err.message || err}`
        );
      }

      if (this.shaderType !== 'compute') {
        this._loadAttributes();
      }
      this._loadUniforms();
      this._renderer._finalizeShader(this);

      this._initialized = true;
    }

    return this;
  }

  /**
   * @private