Hi

I'd like to know how to make rays?

Thank you for your help!

Ah, not so easy.
First, you need to use a spectral atmosphere, and in the "Sky fog & haze" tab, check the Godrays box. Next you'll need dark and dense spectral cloud layers and you'll need to play with cloud cover parameter in the Clouds tab. You need a lot of clouds, but you also need some "holes" in the sky. Now place the sun near those holes, and make a preview render. Don't trust the little preview, most of the times godrays don't show there. Make a preview render, like in the main view. Play with the sun's position and make a preview ren,der each time you move the sun.
Youn may need to change the aerial perspective parameter to 3, instead of default 1, I find it difficult to get Godrays with an AP of 1 (though it's possible)

And if you just want them going through a tree or something similar simply use a volumetric light (;

Quote - And if you just want them going through a tree or something similar simply use a volumetric light (;

It's exactly what I want to do;)

How to do this???

Take the spot light. Place it behind the tree. Point it at the camera. Turn on volumetric light and adjust settings.

Mazak

Like in my latest image, for example? :-)

With the default settings, one thing that you'll probably have is grain in the volumetric cone. To eliminate it, edit the spot light, go to volumetric tab and increase the quality slider. As a rule of thumb, the further away you are from the light source the more you have to increase this slider. In my example, I had to increase it to 4.

If you notice some strange artifacts in the volumetric cone, you might need to increase the advanced effects settings in the render settings.

And I would advise to not tick "optimize volumetric light" in the render settings. In Vue terminology, "optimize" is usually another word for "decrease render time but decrease quality also".

here is couple images i took this morning, no it's not Vue (not yet!), but good refferance for future tutorial   :)

http://www.geekatplay.com/wordpress/?p=140

What I'd like to get looks like www.renderosity.com/mod/gallery/index.php : isn't it possible with Vue too?

Then that's what Bruno said. That's not done with a spotlight.

Quote - Then that's what Bruno said. That's not done with a spotlight.

Isn't there video explaining how to make rays!?

Here:
http://www.geekatplay.com/vuelight/index.php
and here
http://www.geekatplay.com/tutorials2.php  #70
and here
http://www.geekatplay.com/tutorials3.php #99

In 8.0, it's the Aerial Perspective setting.  Make it greater than 3 up to 10.

I have a tutorial on volumetric light beams (old, but hasn't changed that much for the user):
Vue Volumetric Lighting

And here I show how to use fancy light beam filters to change color along beam, make some parts brighter than others, control light on different materials at different distances, etc.

Complex Lighting (get the PDF to see it all)

HTH
   _jc

Quote - Ah, not so easy.
First, you need to use a spectral atmosphere, and in the "Sky fog & haze" tab, check the Godrays box. Next you'll need dark and dense spectral cloud layers and you'll need to play with cloud cover parameter in the Clouds tab. You need a lot of clouds, but you also need some "holes" in the sky. Now place the sun near those holes, and make a preview render. Don't trust the little preview, most of the times godrays don't show there. Make a preview render, like in the main view. Play with the sun's position and make a preview ren,der each time you move the sun.
Youn may need to change the aerial perspective parameter to 3, instead of default 1, I find it difficult to get Godrays with an AP of 1 (though it's possible)

Hi Bruno,

I was astonished  at www.geekatplay.com/flvplayer/player.php they have uses a spectral cloud called "Low Clouds"