Forum: Bryce


Subject: Can you make an object glow?

Shaddex opened this issue on Nov 06, 2004 ยท 9 posts


Shaddex posted Sat, 06 November 2004 at 11:39 AM

I want to make one of my objects in this sean glow with a soft light.. But the object is an odd shape (spiral) I tried placeing some of the lights in it but it didn't make the object glow and light up stuff around it. I've seen objects glowing and such, giving off a colored light plus lighting the object up as well. How do you do it if it can be done?


Kemal posted Sat, 06 November 2004 at 12:59 PM

It is very hard as a render effect, it can be simulated with lot of lights (array of them in the shape of your object) and transparecy, but vey intensive to render, I usualy do it in 2D software by rendering a separate mask for object in question and then add some ligts and glow for it in Painter (photoshop is fine too) ! Bryce itself does not have this capability included (objects cannot be turned into lights) like Cinema4D, for example...Hope this helped some ! ;0)


pogmahone posted Sat, 06 November 2004 at 1:11 PM

Don't know if this is anything like what you're trying to achieve. I turned off sun, atmosphere etc. to let you see more clearly what's happening. The spiral on the left has just the lava material applied, and I cranked up the ambience and diffusion a lot. Also, I put the bead for diffusion in the A channel The right-hand one, I duplicated the spiral, moved it to the right, then duplicated it again and changed the duplicate to a radial light.

pogmahone posted Sat, 06 November 2004 at 1:29 PM

Here's the same mat, but with the light made brighter, and 'ranged' and soft shadows. I stopped anti-aliasing one-third of the way down, as I'm rushing out........

Aldaron posted Sat, 06 November 2004 at 2:09 PM

To make an object "glow" increase it's ambience setting.


diolma posted Sat, 06 November 2004 at 3:39 PM

Yup. What Aldaron said.
Adding to the ambience of an object will make it look brighter.
It won't actually emit any light, so won't illuminate anything near it nor cast shadows, but it wil (probably) look like it's glowing..:-)

Cheers,
Diolma Edit due to excruciatingly bad grammar. The just plain bad grammar I've left in..

Message edited on: 11/06/2004 15:41



electroglyph posted Sat, 06 November 2004 at 5:47 PM

The normal diffuse and ambient settings for an object=100. If they add up to greater than 100 the object appears to give off more light than it takes in. Diffuse is the part of the object the sun hits. Ambient is the shadow side of an object. Things that are glowing don't have a shadow side. If your diffuse and ambient settings are equal your object won't have a shadow side.
For irregular objects do like pogmahone said. It is also good to check the material settings of you original object and turn off cast shadows, receive shadows, self shadows.

Message edited on: 11/06/2004 17:49


Slakker posted Sun, 07 November 2004 at 1:33 AM

If you use the True Ambience render setting you may be able to achieve a more convincing 'glow' than if you were to just increase the ambience alone.


shadowdragonlord posted Sun, 07 November 2004 at 8:56 AM

Aye, and if you blend a True Ambience render with the regular AA render, you can achieve even better results...