Author Topic: indoor landscape  (Read 2489 times)

Michael

    Reputation: 10
indoor landscape
« on: August 16, 2011, 08:23:34 pm »
August 16, 2011, 08:23:34 pm
Our project is a large indoor-landscape, consisting of plenty custom and many landscape elements (trees, water etc.) as well.  I imagine we could bake most textures with shadows, except for objects placed from the Lumion library. I know from a few modeling packages that it´s possible to set objects to neither receive nor cast shadows. Since there is no interior lighting option in Lumion yet, is it possible to render parts of the surrounding building in the above way, opaque but non shadow casting? More specifically, could the ceiling be set to appear textured and still have the sun pass trough and cast shadows on the indoor-landscape?
Any help will be gladly appreciated, as we have yet to decide whether we should consider Lumion for this job or not.

See3D.be

    Reputation: 16
Re: indoor landscape
« Reply #1 on: August 16, 2011, 08:42:49 pm »
August 16, 2011, 08:42:49 pm
You can always download the free version and test what you want to achieve.
Any imported object will cast and receive shadow, no difference with objects from lumion library.

RAD

    Reputation: 32
Re: indoor landscape
« Reply #2 on: August 16, 2011, 10:40:36 pm »
August 16, 2011, 10:40:36 pm
Have you tested whether the z-direction of a polygons face effects shadows?
I think I remember importing some tree models at one point that only had one sided polygons and the direction the polygons faced did effect the shadows on the ground.  I will have to retest that. 

You might be able to fake that ceiling but you wouldn't have a roof if the above is true.
The free version would let you test that Michael as See3D.be said. ;) 


Michael

    Reputation: 10
Re: indoor landscape
« Reply #3 on: August 17, 2011, 11:08:05 am »
August 17, 2011, 11:08:05 am
Thanks for your replies. I do have a licensed version but did not manage to tweak a material to transmit light, not cast shadows and render opaque. Using a single sided face is something I will certainly give a try. Thanks already for this hint.
I was also thinking maybe a face or material with the above mentioned properties could be created in Quest or some other application and then imported. Could that work?

RAD

    Reputation: 32
Re: indoor landscape
« Reply #4 on: August 17, 2011, 11:39:12 am »
August 17, 2011, 11:39:12 am
There is not much you can import into Lumion to "enhance" what it already superbly does (beyond pre-animated collisions, gravity, collapse, etc. - image materials for models - and polygons) at this time.  Everything is kinda already in the box - there are perhaps a few tricks here and there - reading through these forums will give you a very good idea of what can and can't be done, evolving the spaces between the limitations is where the techniques come in.  The community is doing a good job of documenting things.....good for everyone involved.  

No true lights - v2.0 will have something new in that arena.
No ability to pick objects that do not cast shadows - perhaps you can add it to the wishlist.
No opaque materials at this time - a response from staff is somewhere in these threads about that and why.  Already requested on the wish list and would be welcomed by us all.

"I was also thinking maybe a face or material with the above mentioned properties could be created in Quest or some other application and then imported. Could that work?"
No - don't believe this will work. Trust Lumion staff's verification over my statement.

Re: indoor landscape
« Reply #5 on: August 17, 2011, 12:05:07 pm »
August 17, 2011, 12:05:07 pm
"I was also thinking maybe a face or material with the above mentioned properties could be created in Quest or some other application and then imported. Could that work?"
No - don't believe this will work. Trust Lumion staff's verification over my statement.

That's correct.

I should also mention that the 3D silhouettes people actually use a material which allows you toggle whether they should receive/cast shadows, but you can't apply this material to any of the user-imported objects (yet).

Michael

    Reputation: 10
Re: indoor landscape
« Reply #6 on: August 18, 2011, 05:06:42 pm »
August 18, 2011, 05:06:42 pm
Ok, thanks again for all your replies. I also gave faces with just one normal a try and could not get the desired effect. @ CRhoades: I did read through much of the forum in advance. Not finding an answer I allowed myself to post the question. Asking for a tweak does not mean taking away anything from what I consider a great piece of software as well. Even so, our project is probably a bit unusual requiring a large indoor landscape, and as Lumion offers a great deal of options in the landscape building department I had hoped interior lighting could be faked somehow. Lightmapped objects do work, but combining them with Lumion´s stock trees etc. in an indoor scene did not create any credible looking result in tests. @Morten: Thanks for clearing things up. The “yet” word sounds promising, just as knowing we are going to get more lighting options in the, hopefully near, future.

RAD

    Reputation: 32
Re: indoor landscape
« Reply #7 on: August 18, 2011, 05:14:45 pm »
August 18, 2011, 05:14:45 pm
Good Info Michael.
Thank you.

Michael

    Reputation: 10
Re: indoor landscape
« Reply #8 on: August 24, 2011, 08:37:27 pm »
August 24, 2011, 08:37:27 pm
Update: I did manage to create the desired surfaces: non shadow casting and opaque from one side. This allowed me to have a visible ceiling and still let the light-source get trough.
The way to do that was to create single-sided surfaces, checking that normals are pointing towards the interior. I used FormZ for this and exported to 3DS, since Lumion is not capable of reading Collada Files created in FormZ (Sketchup, Max and Blender do). The result is not perfect of course, and the tweak cannot substitute for proper interior lighting, but in our case it means we can use Lumion for the job, which is great.

RAD

    Reputation: 32
Re: indoor landscape
« Reply #9 on: August 25, 2011, 03:11:53 am »
August 25, 2011, 03:11:53 am
 ;)