flickering texture

[JJS209]

hey hey,

i have an annoying problem.
the track is brno and as u can see the "no smoking" sign and the tree's on the edge of the track are flickering.
does anyone know what causes that or how it can be fixed?

https://www.youtube.com/v/gA3xK8xpWIc

[Grooveski]

Flickering textures are usually caused by there being two copies of the model sitting exactly one on top of the other.
Comes from accidental copy/paste operations generaly, doesn't flicker in the modeler so you don't notice until it's in-game.
Can happen when you're stripping out a multi-lod models for conversion as well, a simple part like that will be the same in both lods so there would have originally been two identical bits of model there.
Once worked on a track where thee were a dozen or so copies of all the cones and tyrewalls.  I think the original game must have used them for collision animation or something...

Fixed by deleting the extra faces.  Selecting them can be tricky if the model has already been welded -  In Lightwave you have to select each poly individually in a perpective view set to show textures (with the viewport set like that it''ll only select one face rather than all the copies) and move them over to a new layer then delete what's left. 

If it's not been welded Select Connected usually works ok and you can scoop off a copy of the part without having to pick every poly, even if all the geometry's been stuck on one layer.


Having said all that, the trees flickering there looks more like an environmental effect.  GPB's mip-mapping is a little odd and it could just be that showing through.

[JJS209]

thanks for that long answer grooveski!