Tessellation breaks my model I tried to implement hardware tessellation to increase the detail on my snow mesh but when I run the code it places some of the geometry in the middle of my view and rotates them when moving the camera. This is my vertex, constant patch function, hull and domain shader code: https://ift.tt/eA8V8J

I tried to implement hardware tessellation to increase the detail on my snow mesh but when I run the code it places some of the geometry in the middle of my view and rotates them when moving the camera. This is my vertex, constant patch function, hull and domain shader code:

from GameDev.net http://bit.ly/2LMGx7b