objects dissapear after attaching --editable poly objects

[redrobinrobinhood]

i want to export a 3d model of a car as vray mesh . but before that all its objects must be attached as one single editable poly object. but when i attach some objects it works fine but after attaching some objects they look fine in the viewport but dont render at all.the parts totally disappears after rendering . pls help. and thanks in advance:mad:

Edited September 3, 2012 by redrobinrobinhood

[salvador]

Weired. Check the normals after attaching. MAke sure they all poitn outwards and that your materials are set to Double sided. Try rendering without materials and/or try to set all the elements to the same mat ID.

 

Hope it helps.

[redrobinrobinhood]

i have checked the normals the normals are pointing at the right direction

[Corey Beaulieu]

I'm not sure what is going on for you, but you do not have to attach everything to export as vray mesh. You can just tick the button that reads something to the effect of "export all selected objects into a single file" It's slightly harder to manage materials this way, but if you set them up before it will be fine.

[salvador]

Did you by any chance mirror these parts? This has happened to me. I mirror objects and when I try to attach them they go. So, if you did, try to flip them before attaching them.