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Self-Illuminated Solid
show user profile  dav08
Good evening, I'm new in the forum, so first of all hello to everybody.

I'm having some problems trying to "self-illuminate" a solid in my 3ds proyect. When I render the scene the part doesn't appear lighted. I'm not 3ds Max expert, but I've looked for the answer for my problem all around the web.

I've activated GI and FG, but it doesn't work out. I don't know if I must change some feature in the render setup menu, or the problem is in the material features.

Some help please!
read 1983 times
5/5/2013 4:59:22 PM (last edit: 5/5/2013 4:59:22 PM)
show user profile  herfst1
Uh, in 3d there are many ways to skin a cat. It's good to show pictures of what you're trying to do.

I assume you're using a standard material with 100% self illumination and Mental Ray (MR)? Do you have lights in your scene? Maybe the self illumination's working but you can't see it too well.

If you're using scanline to render, then stick with standard materials.
If you're using mental ray to render, then try out Arch & Design materials.
And if you're using Vray, use vraymtls.

As for the self illumination, I'd go about it a different way and use lights instead as I've never got a decent result from self illumination.

As I said before, it's easier to give advice if we know what you're trying to do. Like, if you're trying to make a tv illuminate then you'd go about it differently than, say, a lightbulb, or lazer beam.
read 1976 times
5/5/2013 5:19:04 PM (last edit: 5/5/2013 5:19:04 PM)
show user profile  dav08
Well, herfst1, when I read your answer I thought that I had the solution. I used standard materials in mray renderer. I've changed the material to Arch&Design, just as you told me, but it doesn't appears neither.

I'm rendering this interior

and as you can see, the self-illuminated parts are the lamps in the ceiling.

Thank you for your quick answer!
read 1962 times
5/5/2013 7:46:59 PM (last edit: 5/5/2013 7:55:51 PM)
show user profile  dav08
OK I GOT IT! I think I was using too low units, so the light couldn't be shown.

Thank you again! Your answer was usefull.
read 1956 times
5/5/2013 7:56:52 PM (last edit: 5/5/2013 7:56:52 PM)
show user profile  herfst1
Glad it worked.

Reaaalllyy nice pic, btw.
read 1943 times
5/6/2013 2:14:52 AM (last edit: 5/6/2013 2:14:52 AM)
show user profile  Joey Parker Jr.
Did someone say self-illuminated solid?


 photo 2012-sig_small3_zpsbd114b69.png

read 1901 times
5/8/2013 9:21:29 PM (last edit: 5/8/2013 9:21:29 PM)
show user profile  npcph
nice video joey. Any details on how you got such good results?

read 1879 times
5/9/2013 4:27:29 PM (last edit: 5/9/2013 4:27:29 PM)
show user profile  Joey Parker Jr.
I'm disapointed with the compression form photobucket. It really lost a lot of detail.
Anyway nothing really new here accept that I got to finally play around with some of vray's newer but hardly new settings. And mentalray can do most of this also. Not sure if the self illumination in mental ray has a tick box for GI though.
Here are the settings:
 photo glow_zpsc197461a.jpg
 photo 2012-sig_small3_zpsbd114b69.png

read 1872 times
5/9/2013 5:23:10 PM (last edit: 5/9/2013 5:37:42 PM)
show user profile  herfst1
Settings? C'mon man, don't tease. I've always had trouble getting good self illumination in Vray.

[edit] Aahh. My internet was slow. Apologies. And thanks for the settings.
read 1867 times
5/9/2013 5:25:30 PM (last edit: 5/9/2013 5:26:18 PM)
show user profile  npcph
ignore this. nothing to see here.... please move on.

read 1862 times
5/9/2013 5:29:30 PM (last edit: 5/9/2013 5:30:03 PM)
show user profile  Joey Parker Jr.
It took awhile to upload from divshare.
 photo 2012-sig_small3_zpsbd114b69.png

read 1855 times
5/9/2013 5:31:59 PM (last edit: 5/9/2013 5:31:59 PM)
show user profile  herfst1
Hey, Joey, just tried it and I don't have the self illumination box in the material settings. What version of Vray do you have?
read 1855 times
5/9/2013 5:33:04 PM (last edit: 5/9/2013 5:33:04 PM)
show user profile  Joey Parker Jr.
It's new from February this year. Version 2.40.03 I think.
 photo 2012-sig_small3_zpsbd114b69.png

read 1840 times
5/9/2013 5:42:43 PM (last edit: 5/9/2013 5:42:43 PM)
show user profile  herfst1
Ah, that explains it. Thanks.

[edit] Yeah, it's good they chucked that in. Previously I had to do things like add a vraylight material and tweak the hell out of it. Else use actual lights pointed directly at the object (or directly away with a falloff alpha or something like that) to try and fake it.
read 1838 times
5/9/2013 5:43:17 PM (last edit: 5/9/2013 5:45:00 PM)
show user profile  reeves1984
vraylight material then adding a black glossy vray (normal) material over it is a good way to do it otherwise

(if you didn't have that new shader - which looks good)

--
Simon Reeves


www.simonreeves.com - VFX Artist & Blog
twitter


www.analogstudio.co.uk <-- I work here

read 1828 times
5/9/2013 7:04:14 PM (last edit: 5/9/2013 7:04:14 PM)
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