Guild Wars 2

Help, on an ordinary day( about a month ago) I decided to play guild wars 2 after a long period of inactivity. when I opened the client weird vistas started to appear randomly.
In the beginning I thought it was just a minor issue, but when I finally started playing the game, hell broke loose.
Random triangles appearing everywhere making it impossible for me to see about anything. I thought, “okay this is going wrong, maybe restarting the client will work”.

I wish I could tell all of you guys it worked like a charm so people with the same issues I have been dealing with don’t have to suffer any longer from this fatal glitch, but here comes the sad truth.
It just got worse.
I couldn’t stand trying to play a utterly broken game, so I put it aside, letting it gather dust for the following month.But Today, I decided I’d try it out for the last time.
Nothing changed.
I just hate having to deal with a broken game, knowing that those responsible for this mess being nearly completely out of reach, so I’m using this forum as a last resort for the solving of my problems.
Please Anet, the games are great, but don’t ship them broken.
Thank you for your attention.
Sincerely,
Kirto Alexana

Turn off the ambient occulsion in your video settings. I experienced a problem similar to this when I tried to turn it on. (Nvidia 580gtx here)