Method clearDepth

src/webgl/p5.RendererGL.js:656–659

* Resets all depth information so that nothing previously drawn will * occlude anything subsequently drawn.

(depth = 1)

   * occlude anything subsequently drawn.
   */
  clearDepth(depth = 1) {
    this.GL.clearDepth(depth);
    this.GL.clear(this.GL.DEPTH_BUFFER_BIT);
  }

  _applyStencilTestIfClipping() {
    const drawTarget = this.drawTarget();