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Support for unlicensed users => Post here if you can't find your License Key => Topic started by: stayinwonderland on July 06, 2012, 04:09:02 pm

Title: Do bump makes work ok in lumion?
Post by: stayinwonderland on July 06, 2012, 04:09:02 pm
I've just been trying to work on a castle turret which involves a lot of complex mapping (because its a cylinder).

The bump looks pretty terrible (see attached). Is this normal?

Also, if I unwrap the object and do my own custom uvw map, will it import ok? Or is there just a default planar/box style mapping that lumion uses?
Title: Re: Do bump makes work ok in lumion?
Post by: Morten on July 06, 2012, 04:56:16 pm
If you mean the vertical "sharp" segments, they're actually caused by missing/incorrect smoothing information in the model. When you export your model, is there an option/tickbox to include smoothing?
Title: Re: Do bump makes work ok in lumion?
Post by: Gaieus on July 06, 2012, 05:47:11 pm
I have thrown quite complex UV mapping examples at Lumion and it could always handle anything I tried...
Title: Re: Do bump makes work ok in lumion?
Post by: peterm on July 07, 2012, 02:00:58 am
In Lumion you use normal maps to provide bump detail, re second texture slot referred to as bump map in the Standard Material Type - Textures dialogue.

Make the normalmap in Photoshop, Crazybump or ShaderMap Pro etc tool and add manually as an additional texture by clicking on the slot, then tweak the look by changing the sliders in the Advanced Options.
Title: Re: Do bump makes work ok in lumion?
Post by: stayinwonderland on July 07, 2012, 02:02:51 am
Ah, normal maps. I didn't know it used normal maps.

Cheers! I'll give that a try.
Title: Re: Do bump makes work ok in lumion?
Post by: cpercer on August 10, 2012, 07:42:32 pm
In Lumion you use normal maps to provide bump detail, re second texture slot referred to as bump map in the Standard Material Type - Textures dialogue.

Make the normalmap in Photoshop, Crazybump or ShaderMap Pro etc tool and add manually as an additional texture by clicking on the slot, then tweak the look by changing the sliders in the Advanced Options.

Hey Peter!

Would you mind explaining the normal map process for Photoshop?  Thanks!
Title: Re: Do bump makes work ok in lumion?
Post by: Morten on August 13, 2012, 10:09:18 am
Hi Chase, here's some info to get you started:

1) Download NVIDIA Texture Tools for Adobe Photoshop:
http://developer.nvidia.com/content/nvidia-texture-tools-adobe-photoshop (http://developer.nvidia.com/content/nvidia-texture-tools-adobe-photoshop)

2) Photoshop -> Filter -> NVIDIA Tools -> NormalMapFilter

(You'll get better results with CrazyBump though)
Title: Re: Do bump makes work ok in lumion?
Post by: Gaieus on August 13, 2012, 12:09:07 pm
...(You'll get better results with CrazyBump though)

PixPlant also has some very easy tools to make normal maps. CrazyBump is said to the the top-most application but PixPlant is much cheaper (and it can also generate seamlessly tiling textures from any custom photos and such).
Title: Re: Do bump makes work ok in lumion?
Post by: Aaron on August 13, 2012, 08:01:01 pm
The current King of the hill regarding normalmaps is nDo2.
It's fairly affordable for a single seat license:

http://quixel.se/ (http://quixel.se/)
Title: Re: Do bump makes work ok in lumion?
Post by: Morten on August 14, 2012, 11:07:12 am
Cool app for sure - thanks for sharing the link, Aaron!
Title: Re: Do bump makes work ok in lumion?
Post by: cpercer on August 16, 2012, 10:15:35 pm
Can Lumion use height or displacement maps on materials?
Title: Re: Do bump makes work ok in lumion?
Post by: Aaron on August 16, 2012, 10:19:35 pm
Can Lumion use height or displacement maps on materials?

Short answer: No

Bit longer answer: Nope
Title: Re: Do bump makes work ok in lumion?
Post by: Zdenek Fajfrlik on August 17, 2012, 05:52:44 pm
hi eveybody,
since i am a beginner in textures and mapping,

is any texture, i use in skp, a " NORMAL MAP" ? or do i have to prepary every texture, i want to use in the texture dialogue, to be NORMAL ?

thank you, stan
Title: Re: Do bump makes work ok in lumion?
Post by: Gaieus on August 18, 2012, 09:00:20 am
The basic "colour" materials in SketchUp would be called "diffuse". Normal maps are those blueish images with a hint of red and other colours indicating irregularities on the surface. See attached below (a simple SU material exported and its normal map also added)
Title: Re: Do bump makes work ok in lumion?
Post by: Zdenek Fajfrlik on August 18, 2012, 12:31:35 pm
The basic "colour" materials in SketchUp would be called "diffuse". Normal maps are those blueish images with a hint of red and other colours indicating irregularities on the surface. See attached below (a simple SU material exported and its normal map also added)

hi gai, thanx a lot. so in texture mode the diffuse one is the basis texture and the normal is for bumping (depth of structure)......right? now i understand, that i have to gererate the normals from the doffuse textures.
stan
Title: Re: Do bump makes work ok in lumion?
Post by: Gaieus on August 18, 2012, 06:49:28 pm
Yes, exactly. In SketchUp, you do not really call the materials "diffuse" as there is only one material so you need not make the difference. But essentially right: the "real colour" version is usually called this way when there are more "maps".

Bumps could be generated with greyscale bump maps, too. Normal maps however (theoretically) can contain more info (if I am not mistaken). There can be other maps as displacement (not in Lumion) or specular maps for various purposes. Lumion only uses the normal maps.
Title: Re: Do bump makes work ok in lumion?
Post by: Aaron on August 18, 2012, 08:49:39 pm
Gai is right, normalmaps are superior to bumpmaps as long as they are good quality.
Lumion can also use specular maps. You have to put those in the alpha channel of the diffuse map. Don't ask me why. Someone probably figured this way noone would use them and he was right.
Title: Re: Do bump makes work ok in lumion?
Post by: dcrosssvpa on August 28, 2012, 09:23:04 pm
Gai is right, normalmaps are superior to bumpmaps as long as they are good quality.
Lumion can also use specular maps. You have to put those in the alpha channel of the diffuse map. Don't ask me why. Someone probably figured this way noone would use them and he was right.


Ok...I'm not so smart I guess...how do I go about combining the specular map with my diffuse map so that Lumion can take advantage of the specular part?  Just send me the paypal account you want me to deposit money into....  :)

Title: Re: Do bump makes work ok in lumion?
Post by: Aaron on August 28, 2012, 11:07:10 pm
Maybe this will help...kinda...somewhat..a lill  ::)
I hope so  8)

Title: Re: Do bump makes work ok in lumion?
Post by: dcrosssvpa on August 29, 2012, 02:49:44 pm
Thanks Aaron!  Pictures always work for me!  :)  That helps out a lot.  This will go a long way in being able to control a little more of the subtle detail of certain material which should in turn (if I do it right) make things look even more real.

Thanks again for your help!
Title: Re: Do bump makes work ok in lumion?
Post by: dcrosssvpa on August 29, 2012, 03:09:46 pm
Figured I'd post a result of my toying around....  :)

The stone at the bottom of the image is a material with just a simple jpg, no bump, no specularity alpha channel.  The top stone is just a simple jpg, with bump, no specularity alpha channel.  The middle stone is a tga map with specularity alpha and bump.  Both materials with reflectivity set are set at the same amount for reflectivity and glossiness.  The results speak for themselves don't you think?  It makes an amazing difference and will be a technique I use for all my materials from here on out.  Thanks again Aaron!  Let me know next time you are in Iowa....I'll buy you a coffee!   ;)