How to make illuminated textures (blendigo)

DaveC · Post by **DaveC** » Fri Apr 20, 2007 11:15 am

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.

crsrma · Post by **crsrma** » Fri Apr 20, 2007 1:06 pm

Very nice attempt, it's also a great explanation of blend materials. Thanks.

mrCarnivore · Post by **mrCarnivore** » Fri Apr 20, 2007 7:28 pm

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...

DaveC · Post by **DaveC** » Fri Apr 20, 2007 8:12 pm

@carnivore.
Try it without SSS and see what happens.

mrCarnivore · Post by **mrCarnivore** » Fri Apr 20, 2007 9:14 pm

I will try tonight. However, you should still use uniform sss.

DaveC · Post by **DaveC** » Fri Apr 20, 2007 9:23 pm

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.

Post by **OnoSendai** » Fri Apr 20, 2007 9:44 pm

Thanks Dave.

DaveC · Post by **DaveC** » Fri Apr 20, 2007 10:13 pm

No problem, Nick. I will look at the Wiki if you like to see if I can put this in the right format.

Post by **OnoSendai** » Fri Apr 20, 2007 10:15 pm

Perhaps u could add a link to the download on the wiki.

mrCarnivore · Post by **mrCarnivore** » Sat Apr 21, 2007 12:55 am

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!

DaveC · Post by **DaveC** » Sat Apr 21, 2007 1:18 am

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.

kwez · Post by **kwez** » Sun Jan 20, 2008 6:38 pm

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

Kram1032 · Post by **Kram1032** » Mon Jan 21, 2008 12:00 am

kwez, this isn't necessary, any more: Indigo now has textured emitters

kwez · Post by **kwez** » Mon Jan 21, 2008 10:03 am

ah !
that was easy.
10secs fix

cool thx !

Kram1032 · Post by **Kram1032** » Mon Jan 21, 2008 10:25 am

no problem

looks nice!

How to make illuminated textures (blendigo)

How to make illuminated textures (blendigo)

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