How to reduce the size of a model

[Kartoffelkuchen]

Helloo...well, thats a kind of..fascinating/embarassing:sealed::

I made an engine.

Yeah, its model size is very big (~2.2mb), and as I wanted to attach it in the editor there was a extrem high lag. KSP crashed after I pressed the Launch button. So my question would be if its possible to reduce the model size anyhow..?

Otherwise I will make a new one based on this, just with not so many Polys...

Ps.: The engine was made in Blender, if that helps you

Edited June 24, 2014 by Kartoffelkuchen

[nli2work]

what's the triangle count on that?

you probably need to make a lower triangle count mesh that approximate it's shape as closely as possible. Shoot for something around 7k triangles for start. and bake out the textures onto the lower res model.

[Justin Kerbice]

It is most likely to be the collider(s) (too complicated) which cause the issue. I have a similar one with 18 convex colliders for a single part, part in KSP meaning, FPS already ruined in VAB !

In the opposite way, a very high-poly objects (40000 if I'm remember it well) cause no noticeable slowdown.

[Kartoffelkuchen]

Thaaaank you Justin Kerbice! It was because of the colliders. First I had 10 Mesh Colliders, now I just have a box collider and it works perfect!