Stencil buffer problem ?

Hello .
I have a big problem . I can not work with stencil buffer .
When I draw a object , OpenGL display it in frame buffer either
I call before it “glStencilFun(GL_NEVER,…” or “glStencilFun(GL_ALWAYS,…”
What is my mistake ?
Thankyou before your favour.


Did you remember to enable stencil testing?


See ya’