April 17, 2014, 10:34:27 am
I see you are using v3.0.2, that is an early version 3 and there is a more recent v3.2.1. Can you please arrange to upgrade your version 3. If you are unable to locate the email showing the download link and instructions, just email the office for a copy (info [at] act-3d.com), quoting your license number and educational organisation details.
I tried importing the 3DS initially with Lumion but gave up after an hour or so. It must have taken a long time for your model to finally import, any idea how long?
The problem is that the 3DS file has 23000 separate materials, and Lumion is not able to do things in real-time with that many individual materials. The polygon count is about 1.2M which is fine for Lumion. This is a 3DS format and export from modelling application issue.
You will need to reduce the number of materials in order to get better performance on screen, and for rendering and assignment of materials.
Reducing the number of materials is best done in the application that did the model and export. All selective faces need to be assigned materials, which otherwise can end up with separate materials when exported as 3DS. If there is an alternative export format than 3DS, then that would be preferred.
What modelling application did the model come from?
If it can't be done in the modeller then there are a few 3D tools around that may help to fix it.
I used an old version of Right Hemispheres Deep Explorer to remove duplicate materials so all surfaces are combined, and it was able to reduce to 5 materials. I'll also check about this with our import/export developer. This model was then able to import in about 10 minutes, and runs fine on my lesser GTX660.
You are unlikely to have Deep, so depending on your access to the source model and export options, we can later see what other 3D conversion tools are around that might help. I have tried SketchUp - imported model but because too many materials would not draw on screen so had to force close. iClone 3DExchange almost loaded but froze. Best bet would be Max. Preferably, as mentioned above, prepare the model in the source modelling application.