3D Anaglyph Glitchy

When I turn on the 3D anaglyph setting, it does work, but the red picture and the blue pictures are too far apart when you go further than 1 block from where you're looking at.

But as you can see in the picture when it's close its fine, but when its far away, two picture starts to divide.

Anyways I hope you guys fix this issue because I like the idea of 3D anaglyph in Minecraft so much!

Sorry for my English, not my first language.

Thank you!