How to model a 3d building and interior

Here we will attempt to go step by step at modeling a complete 3d building with multilevel interior and roof access in 3d studio max. This building was designed for a game I’m working on in the unity3d game engine.

I dunno, maybe someone might find this helpful, either way enjoy!

If you did happen to find this tutorial informational or helpful in anyway, please let me know below by leaving a comment. As I venture more and more into 3d information sharing, I wanting to know how my teach are being received by my viewers before really continue any further down this avenue.

Thanks everyone!

Devin R. Olsen

Devin R. Olsen

Located in Portland Oregon. I like to teach, share and dabble deep into the digital dark arts of web and game development.

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20 Responses to “How to model a 3d building and interior”

  1. Devin R. Olsen Mike Roberts says:

    I have found these videos to be awesome; I’m trying to model buildings for simulation/gaming content. Any tips on adding windows to the models with this technique and how to use this technique with unusual shaped walls, ie hexagonal rooms etc. Any help is very much appreciated.

  2. Devin R. Olsen renish says:

    Which software you used to developed 3d Design.

  3. Soo soo nice Tutorial Olsen…it is verry helpfull to me….thanks for making this Video…^_^

  4. Devin R. Olsen Joshua Kerrigan says:

    This is a great post, I think you should turn it into a 2 or 3 part series.

  5. Devin R. Olsen sundar says:


    Thanks for this tutorial i am just started watching hope it will give me some more technics.

    Thanks for the post


  6. Devin R. Olsen mizan says:

    thnx sir its very essy for me

  7. Devin R. Olsen hariharan says:

    Things gets more easier with “bridge tool” and “connect option tool”

  8. Devin R. Olsen Maralynn says:

    This website makes thngis hella easy.

  9. Devin R. Olsen Luke says:

    @fr3x – don’t worry about matching the size. You can always scale it all up or down later. However, if you are going to transfer it into Unity or something like UDK (I think they both use the same scale), then you will want to set your units to 1 unit = 1 metre, and change your grid so that it shows 1 metre increments.

    Think about real life. How big is a door? At most, 1 metre wide and 2 metres high. Even your size is too big IMO.

    You can also hit Z at any time to frame (or zoom) your selection.

  10. Devin R. Olsen Anton says:

    Your the best thank you thank you thank you :D

  11. Devin R. Olsen monika says:

    It is a good lesson. Low resolution, not all records can be seen. But the lesson is very good. Thank you.

    Greetings from Lithuania :)

  12. Devin R. Olsen Luke says:

    Another tip (sorry to post so many replies!)

    Instead of right clicking with connect, you can use the tool panel on the right and click the little box next to connect which will bring up a control menu. From there, you can select how many cuts you want, as well as pinch and slide the cuts. It made doing the connects for the stair well really simple. Also, you could have just welded the top row instead of deleting the polys, and end up with the same result.

  13. Devin R. Olsen Luke says:

    Also, I spotted an error while doing this. At about 15 minutes, you delete part of the back wall corridor, as well as part of the ceiling, along with other polys where you are about to extrude the floor up. Problem is, you never extrude the floor of the back corridor up. Obviously you noticed this, because at about 17:58 on the video, the back wall and ceiling are back, but you don’t explain this in the video, so it got quite confusing. Just thought I’d post and let you know so other readers don’t get stuck.

    So basically, at 15 minutes, when deleting the ceiling polys and wall polys, don’t delete them unless there is an extrusion underneath.

  14. Devin R. Olsen Luke says:

    One question – if you are transferring this to unity, and have used the recommended 1 unit = 1 metre, why did you create your door at 20 metres by 40 metres? That seems really large to me. Won’t you have to use an odd fbx import scale when you import it (like 0.1 – I know the default is 0.01 for FBX models, but imported as is, your 20 by 40 metre door will be 20cm by 40cm, which is too small, but scaled up to 1 will be 20m by 40m which is massive. Also, 2m by 4m seems even large for a door. A person is about 1.5-1.8m tall.

    Sorry, just wondering if there was a reason for working in the scale you did.


  15. Devin R. Olsen Luke says:

    Great tutorial. Been wondering how to do an interior/exterior in 3ds max. Good one and thanks!

  16. Devin R. Olsen Roman says:


  17. Thanks so much for sharing this!

  18. Devin R. Olsen fr3x says:

    Hello. I have little problem on start. I go on make a large rectangular, next i convert it and make a roof. I have a problem when i should make a door. I have another size than you in tutorial. How i can change it? I have change on meters. My large rectangular have
    and door – what i done wrong?

  19. I always enjoy feedback from my readers!

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