Dear Friends at Epic, Tessellation appears to be totally broken in 4.2 Remember the earlier post someone had with dx11 tessellation in their landscapes and spikes appeared everywhere? And they narrowed it down to the tessellation Landscape Spikes Due to Tessellation [image] Why am I se…

Hey - We always take any question asked seriously, but I wanted to eliminate the easier answer before I start looking for the harder one. I would much rather have found a simple fix that one small tweak would solve your issue. In the meantime though, we actually have found this bug and were able…

#Closest [8074-tessbroken3.jpg]

#Non-Adaptive Tess 1.5 PN_Triangles with tess factor 1.5, non-adaptive [8075-tess1_5.jpg]

Hi - Okay, first the landscape post that you reference is a limitation of the engine, tessellation cannot be used on landscape materials. Tessellation is always distance based as well, the engine has a built in a way of allowing the tessellation to LOD correctly based on the camera’s distance fro…

All of your info is helpful Eric but does not address the elephant in my original post #Why did this never happen in Beta 3 through 4.1.1 and it is happening now? That’s what I want to know what changed, and why did it change, and is it a bug? PS: working on getting you a screen shot

#My Material and Pics Dear Eric, I made a utterly simple Tessellation Material test, Tessellation is definitely broken (never happened in Beta3 to 4.1.1 with exact same character model, smoothing groups, and everything) #Utterly Simple Material Test PN_Triangles With Adaptive [8116-wiretessmat…

#Pics of Results #Far [8117-wirefar.jpg] #Close [8118-wireupclose.jpg]

#Take This Very Seriously Please I need you to take me very seriously here I’ve been playing with Dx11 tessellation in UE4 since Beta3, and have been a huge fan of it! This is the FIRST time I have seen this behavior It is not my model, or at least my model worked fine until 4.2 #Something is w…

Hello, I can confirm that I am noticing the same issues as . Tessellation worked fine for me in 4.1.1 and is now broken in 4.2.

I just reimported the model and recompiled all my shaders and the issue seems to be gone

Tellesation is not just dx11 ; p small note

Dx11 Tessellation Broken in 4.2, completely and totally broken

Development Platform & Builds

Rama (Rama) June 9, 2014, 4:00am 2

#Closest