code: public GVRRenderData setStencilOp(int fail, int zfail, int zpass) {
          NativeRenderData.setStencilOp(getNative(), fail, zfail, zpass);
          return this;
      }
docs: See https://www.khronos.org/opengles/sdk/docs/man/xhtml/glStencilOp.xml