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View Full Version : How can you make star filter highlights?



Opticon
02-26-2003, 11:54 AM
Is there any way to make a star filter effect that globally affects all specular highlights in LightWave? I'm trying to do a still image with gleaming chrome.:confused:

Mylenium
02-26-2003, 12:34 PM
If it is a still, you could always do it in Photoshop. For an animation I would create a separate render pass and use Knoll Light Factory. If you want to do it Lightwave, there is only one tool that can do it to a certain degree - Lume Tools. I'm not sure however if there is a current version for LW. The Corona filter that comes with LW will only do more or less a glowing effect.

Mylenium

Opticon
02-26-2003, 12:50 PM
Thank you. I'm experimenting with Corona now. Wish I could use the effect selectively with lights. But what is really upsetting is that when I click on the "Light Intensity Tool" on the Light panel, I can't get it to shut off. There is nothing in the (poor excuse for a) manual about turning the damn thing off.:mad:

riki
02-26-2003, 04:21 PM
Do you go to GI and set Ambient Intensity to 0?

Capt Lightwave
02-27-2003, 02:01 AM
You could try this plugin: http://kaniserver.homeip.net/~konoha/psycho/Plugin/PG_SCat.zip

More info here:http://kaniserver.homeip.net/~konoha/psycho/

kevman3d
02-27-2003, 03:23 AM
Corona is relatively simple to use for sparkling star hilights...

Just create a star image (grey scale, or colour if you want) in Photoshop, and use it as a texture in Corona. I often use the 'Specular shading' input to do my Corona.

I think I posted something up about this on the old Forum system... Hold on and let me see if I can pull it up... Hmmm, no, its simply about corona for glints on steel... But maybe its useful?

http://forums.newtek.com/discus/messages/2/30149.html?


Otherwise, generate your texture, apply it to your corona and render away! Though that PG_ plugin that Captain LightWave mentioned looks very cool! Have downloaded it, but not tried it yet...

Capt Lightwave
02-27-2003, 06:13 AM
The PG-plugin IS cool, but unfortunately it's only in Japanese for now, but I have e-mailed the author and offered help on translating the whole bunch....it's up to him/her now if we'll ever have a "readable" version.

Opticon
02-27-2003, 09:22 AM
Thanks Capt. & Kevman. I'm going to go with the plain corona effect for the job I'm working on. It looks great and the star filter would be too much, but I will check out the plugin and the texture applied to corona method for the future.

oogafish
03-28-2003, 01:01 PM
The After Effects plug-in "Starglow" by Trapcode ($99) will do exactly that - especially cool for animations. Once you've tweaked the glow to your specifications, just render a single frame.

http://www.trapcode.com/products_starglow.html

Opticon
03-28-2003, 01:24 PM
Thanks Ooga. It looks like a great solution. I bookmarked it for future reference.