So I've had this problem for a while now, and I've messed with a fair bit of settings to try and resolve it myself, but nothing has worked. The problem being that the pixels on items appear to be unconnected and thus you can see the blocks that are otherwise blocked by the item. I've searched for other people with this problem for solutions, but from what I can tell, they didn't work for me. This happens with every resource pack that I use, I am using default minecraft, but with optifine the problem seems to be more noticeable. On version 1.7.10, the unconnected pixels instead just show white past them. If anyone could help me to resolve this, I would greatly appreciate it.
Screenshots: http://imgur.com/a/VLeUL
DxDiag Log: https://pastebin.com/KWz9K5LN
Java Version: 1.8.0_131
Edit: This also happens on my second computer.