glowing colors

Discussions regarding Materials, Material-Compounds or Shaders, etc.
User avatar
Shredder565
Posts: 1014
Joined: 02 Jan 2012, 20:04

glowing colors

Post by Shredder565 » 24 Apr 2016, 17:37

how can we make colors look like they are glowing?

User avatar
rray
Moderator
Posts: 1551
Joined: 26 Sep 2009, 15:51
Location: Bonn, Germany

Re: glowing colors

Post by rray » 24 Apr 2016, 23:04

You can try the glare shader
(http://docs.autodesk.com/SI/2015/ENU//i ... _Glare.htm)
It's getting connected using the output shader stack which you can find it in the pass properties.
-rr
"as a maya discussion grows longer, the probability of a suggestion involving deleting the preferences approaches one"

softimage resources section (formerly known as rray.de/xsi) updated May 30 2018

User avatar
Hirazi Blue
Administrator
Posts: 4918
Joined: 04 Jun 2009, 12:15

Re: glowing colors

Post by Hirazi Blue » 25 Apr 2016, 15:39

Another option is the 2d glow, which also is an output shader (post-processing).
There also is a Mental Ray material to produce a glow effect in the Render Tree: glow
;)
...

NNois
Posts: 702
Joined: 09 Jun 2009, 20:33

Re: glowing colors

Post by NNois » 25 Apr 2016, 16:38

that's not really recommended to post process the picture directly on the render...

I would consider two aproches:

1. The easy way is to render you image with a high dynamic range (so colors goes higher than the common 0 to 1 values). On glow material, just use a high color value (you can go higher on the HLS sliders).
Then with your comp app or XSI, you can simply apply a Glow only on high values parts you just have to up the threshold ;-)

If you don't have a "glow effect" simply level you rendered image to a range in your glow values, blur then add it to the source.

Plus you're playing with the 2000's way ;-) not the 80's

2. Output an special AOV. On your material, use a white "Store color in channel" with a "color 4 passthrough" pimped just before your material output. Then in your render pass output your new channel (AOV).
You'll get a mask you can glow with a comp app