thx for your reply.
I am not shure if i could made this clear in my previous post.
One problem was that clip/repeat/.. is generally ignored by octane. The other, the main problem was the not updated uv changes i made in blender during export via your script.
I never encountered similar problems with the direct obj export before.
..now i got some proof that it got to do something with my scene/blendfile: When i export my scene with the obj exporter (2.55) everything seems to work fine, but when i load the objmesh into octane, it crashes reproduceable...
hmm as workaround for my crippled scene:...do you know any script/tool for blender 2.5x which will remove all mat/tex/uv links from the meshes/datablocks, because in my scene there are a lot and i dont want to delete all by hand. Or is it possible while load/append them in blender to ignore all mat/tex/etc?
Thank you for all your efforts!
best regards dave