Super big File - Computer cursor keeps spinning

Support Modeling
1

Hello

Ich need to animate a train in a landscape. The model I received as .obj file and it is 8 GB big. Its a long train with different wagons with mechanical stuff on it.

image
image1261×534 122 KB

It was exported out from an autocad programm.
Can anybody tell me how can I work with that without crashing the computer?

I tried to apply the Decimate modifier, but the cursor kept spinning for 2 hours.

What ist the best way to start being able working with such a big file?
Try to separate it in Edit mode in smaller chunks?

Thanks for any suggestions.

Jakob

2

I would import each train car group separately. Clean it up, save it. Then repeat the process for the rest. Finally, append all the clean object into a new blender file.

3

Thanks! Is there an option to import only parts with an .obj’

4

If all objects are connected, you must separate them first.
There is no way to import them individually.

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