Occlusion help

[Sephiroth_VII]

I want to make xmorphious's castle system have occlusion like trees so I can see thru them and they don't block camera view. I tried setting occlusion to -1, 0, 300, 999999, 400, but nothing works. Is it somthing wrong with the model that won't allow it?

 

[Airandius]

I think you're looking for the value inside the unit object editor: Art- Use Extended Line of Sight