Alpha problems in Maya and UDK

Jake-Harris

I have been having some problems with using alpha channels to create transparency in my textures.

Maya
When alpha channels are applied, faces on my models start to become transparent in random places and displaying meshes further in the distance instead of closer faces.

UDK
When I import my meshes into udk and then apply my textures the mesh becomes transparent unless I am inside it. When inside the mesh it becomes solid, as if the normals have reversed.

:poly127:

Any idea's what is causing this?
Thanks

Eric Chadwick

Yeah, this is a common problem with alpha blending. Usually people just switch to "alpha test", which is on/off alpha, no smooth blending, and it has none of these problems.

http://wiki.polycount.com/TransparencyMap#Sorting_Problems

Reminds me I need to make some pictures for this page, would make it a lot easier to understand.

rube

In maya you can usually fix this but changing the sorting type. In your viewport enable Shading>Polygon Transparency Sorting.

Jake-Harris

Thanks a lot guys, this helped me loads!!