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How to make illuminated textures (blendigo)
Posted: Fri Apr 20, 2007 11:15 am
by DaveC
This is my first attempt at a tutorial and it's in pdf format (sorry). I used my illuminated advert to illustrate how to get around the problem of light emitting textures. It's not ideal for every situation, but it sure works. The tutorial requires blendigo but I'm sure the material methods are suitable for all indigo users.
Posted: Fri Apr 20, 2007 1:06 pm
by crsrma
Very nice attempt, it's also a great explanation of blend materials. Thanks.
Posted: Fri Apr 20, 2007 7:28 pm
by mrCarnivore
Nice tutorial, but why don't you use uniform sss, when you use the same values for every colour? Should be much faster.
Also, why do you have to use sss at all? Youdon't need it to scatter the light, since you didn't model the tubes but an already uniformly lit surface...
Posted: Fri Apr 20, 2007 8:12 pm
by DaveC
@carnivore.
Try it without SSS and see what happens.
Posted: Fri Apr 20, 2007 9:14 pm
by mrCarnivore
I will try tonight. However, you should still use uniform sss.
Posted: Fri Apr 20, 2007 9:23 pm
by DaveC
it makes no difference. Uniform SSS is just RGB SSS with R, G, and B all at the same value. With RGB SSS you can control the colour of the scattering. That is the only difference.
Posted: Fri Apr 20, 2007 9:44 pm
by OnoSendai
Thanks Dave.
Posted: Fri Apr 20, 2007 10:13 pm
by DaveC
No problem, Nick. I will look at the Wiki if you like to see if I can put this in the right format.
Posted: Fri Apr 20, 2007 10:15 pm
by OnoSendai
Perhaps u could add a link to the download on the wiki.
Posted: Sat Apr 21, 2007 12:55 am
by mrCarnivore
DaveC wrote:it makes no difference. Uniform SSS is just RGB SSS with R, G, and B all at the same value. With RGB SSS you can control the colour of the scattering. That is the only difference.
It DOES make a difference. rgb sss with same colours takes WAY longer than uniform sss!
Posted: Sat Apr 21, 2007 1:18 am
by DaveC
mrCarnivore wrote:It DOES make a difference. rgb sss with same colours takes WAY longer than uniform sss!
Ok, then, ermm..., I WANTED to use coloured sss
But if you want a quicker render, people, use uniform sss ala mrCarnivore's advice.
Posted: Sun Jan 20, 2008 6:38 pm
by kwez
Hi,
I just tried this tutorial, very nice, thank you.
but I just get a black image !
Blender 2.45
Indigo 1.0.5
Blendigo 1.0.4
I cant get the blend material (poster+clear) to let any light through !
if I remove the 'poster', I do get light
(I checked the normal of the light obj, it points 'outside' the enclosure)
if I place a light source outside, I do see the poster..
I tried using 'null' material for 2nd blend value ..
in this case, I dont see the image at all...
any hints ?
thx
Philippe
Posted: Mon Jan 21, 2008 12:00 am
by Kram1032
kwez, this isn't necessary, any more: Indigo now has textured emitters
Posted: Mon Jan 21, 2008 10:03 am
by kwez
ah !
that was easy.
10secs fix
cool thx !
Posted: Mon Jan 21, 2008 10:25 am
by Kram1032
no problem
looks nice!