Weird black box in f5 mode?

So late at night today I was messing around with the camera studio mod in 3rd person view. I soon noticed that whenever the camera faced me a large black box (3D) appeared. It seemed to twist whichever way I moved. I have no idea what could be causing this. It might just be me. Just double hit f5 and you will see (plot world).

Here are pics. They are step by step

 

Woah that's creepy stuff brah

 

The server be creepin' no need to worry.

 

So, this is the shadecrest server??

 

That sometimes happens when you look through a slab/stair block. If you have noticed the shadow that generates on slabs when something is above them, this is the same thing. Or that's what I am guessing.

 

Oh. I never noticed that

 

I had this before in survival. I tried to just ignore it, but it looks like a rain cloud following you.

 

yuck a mac. :/

 

This just happens because of flatworld. it's just a glitch

 

O HELL NO. MAC FTW! Go get the blue screen of death- ain't nobod got time fo dat

 

*cough* spinning beach ball of doom *cough*

 

http://usatoday30.usatoday.com/tech/story/2012/09/23/pcs-vs-macs-how-they-stack-up/57818700/1

Enough said.

 

Oh god. You Guys watch too much Russell Howard and the News Channels. WWWWWAAAAAAAYYYYYYYYYYYY TTTTTTTTTTTTTOOOOOOOOOOOOOOOO MMMMMMMMUUUUUUUUUUUUCCCCCCCHHHHH

 

That was written by a PC user a was -_-
well mac did get best laptop for 5 years in a row and best desktop since 2005

 

Tell me how easy it was to get this mod for your mac.

 

well, it was hard to find a video that did it correctly, eventually I got it on my won. I figured out soon that it was damn easy

 

I prefer PC for two very simple reasons.

1. Most video games/programs are designed for PC by default.

2. Our hardware isn't soldered together, which makes replacing a stick of RAM a lot cheaper than having to buy a new computer. We also don't have to visit a dedicated store for repairs.

 

Oookkkk, I now feel very awkward not being able to help after everyone else's help with my minecraft not working.

 

Like we've told others, don't double post edit your post.

 

Who are we talking about?