I'm having trouble with the transparency of the fences, it should appear the background trough them, but I don't know the reason why this isn't happening. Any sugestions??
It looks like a sorting issue. Try setting the image plane with the mountains material offset to a higher number. The track_technology pdf recommends this as a last ditch effort, though. Have you tried using "chroma" transparency?
Yes "chroma" transparency is checked. I'm gonna take a look at the mountain material, but I don't understand what to do there. Thanks a lot.
Yes,i use DXT3 interpolated alpha with 6 mipmaps,it´s correct? I tested the offset upgrading numbers from 0 to 4 and it didn't work, but, when I put it at -2 it worked perfectly. Thanks a lot.
Are you using both croma- and blending transparency on same material? I don't think it should work correctly and you should pick one of those. Chroma works much, much better in rF2 (comparing to rF1). In most cases it should be good enough for fence transparency. Cheers!
Yeah, only one can be enabled at a time. It's just some strange rFactor limitation, because these are actually independent on GPU and in DirectX.
IMO it's good limitation, because transparency is very resource-hungry anyway. It teaches us behave. Cheers!
Not really. Blending is a bit expensive. Alpha test is equally fast to rendering non-transparent polygon or faster. Alpha test is just skipping rendering of pixels that are transparent anyway. Blending is performed on all pixels of a polygon, even those that do not change anything on screen. That's why I like using alpha test or discard instruction in pixel shader to optimize blending.
