Volume Light for Exterior Scene?

[Professor]

I am trying to set up an exterior scene with sunrays shining through an object (like a fence). I am using mr sun and sky. I tried using Parti Volume Shader, but could not get it to work for an exterior scene. Basically, the volume light shows up everywhere, not just where I want it. Is it possible to use Parti Volume for an exterior scene, or is there another method that would work better? Any input on how to go about this would be appreciated. Thanks!

[datacrasher]

Scott

are you talking about 3ds max or another MR you dont say????

 

done in max

I would use the target spot or the the free spotlights reduce the near and far attenuations decrease them to where you want see them to be near and far attenuations is the blue circle i think it's still blue i have max 8 so i am going by that i only can do with though a window so i think it would be the same by reducing them both. mmm make sure you have the light alined to where you want the volume light to be,,,,

 

Good luck

DC

Edited June 23, 2010 by datacrasher

[Professor]

Data - Sorry, Yes - I am trying to do this is 3dsmax 2010. Your solution, while workable, is not what I am really looking for. I am using a Daylight system, so do not want to use standard or photometric lights if possible. The Daylight system is casting the shadow and making a light footprint on the ground, but I want to add rays of light from the object to the light footprint. Although a spotlight setup would do the job, I don't think it is the ideal way to go when using a Daylight system. For one, the multiplier for the spotlight would have to be really high to overcome the Daylight system and then trying to match the light footprint from the Daylight system with the spotlight would be challenging. Also, I eventually want to animate this scene by changing the time of day through the Daylight system, not wanting to move another light to keep sync. Thanks for your input though!

[datacrasher]

The problem I found with the daylight system is that sometime it interferes with other lights when you create them the DS only used for when you are creating an scene you can animate it going from morning, evening and night. So I think you would need to exclude the fence from the DS. Instead of the lights to light up the footprints you can assign a material and increase the self-illumination to about 50% and charge the color to yellow IMO. I would get everything set up in your scene before you start to animate it b/c when you have the animation key set and then you mite want to change something in your scene that mean you would have to delete the animation key move the model/object and then re-apply the keys…..

Good luck

DC

[Bundie]

Hi Skeet12

 

there is a tutorial written by Jeff Patton on the parti Volumn shader, it doest say anything about using it with the daylight system, but it does go through all the settings and what they do. Have you seen it?

 

send me a message if you want it and I can send it through

 

cheers

Andrew

[Professor]

Hi Skeet12

 

there is a tutorial written by Jeff Patton on the parti Volumn shader, it doest say anything about using it with the daylight system, but it does go through all the settings and what they do. Have you seen it?

 

send me a message if you want it and I can send it through

 

cheers

Andrew

 

Thanks Andrew. I sent you a private message requesting the link to the tutorial.

 

Thanks,

 

Scott