[1.12][OpenGL] Stencil buffer does not work as it suppose to

[XsergeiX]

I need some way to cut off everything, that is outside of mask.

Here's code i have wrote: https://pastebin.com/e2ugQ0Xa

And here's the screenshot what i have got:

 

Ligther area is actually mask, it shouldn't be visible and also everything else should be rendered only inside that lighter area.

I also have tried other ways to crop my table(scissor, depthmask with framebuffer), but no success.

p.s. Stencil is turned on

Edited April 21, 2018 by XsergeiX

[XsergeiX]

Asked everyone who could know that but no result - nobody knows. Does anyone from here know how could be that problem solved?

Edited April 23, 2018 by XsergeiX

[Spectre0987]

In your PreInit call Minecraft.getMinecraft().getFramebuffer().enableStencil();. 

Edited August 4, 2018 by Spectre0987