Volumetric Light Problem 2003-11-24 - By Dave Angelini
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Stan,
Thanks....that did it. It is funny that I associated volumetric lighting
with ray-cast or ray-tracing. Here is the updated image:
http://home.comcast.net/~dianeangelini/Stills/ufoscene3.jpg
A few more tweeks and then it will be time to animate (provided Caligari
fixes that spotlight bug).
Thanks,
Dave Angelini
-- -- Original Message -- --
From: "Stan Slaughter" <stan@(protected)>
To: <truespace@(protected)>
Sent: Monday, November 24, 2003 12:18 PM
Subject: Re: [TSML] Volumetric Light Problem
> Render in scanline, not raycast mode.
>
> Stan Slaughter
> http://www.stansight.com
>
>
>
> -- --Original Message-- --
> From: TSML [mailto:truespace@(protected)] On Behalf Of Dave Angelini
> Sent: Monday, November 24, 2003 12:36 PM
> To: truespace@(protected)
> Subject: [TSML] Volumetric Light Problem
>
>
> Howdy,
>
> Still working on my CE3K scene and I have an issue with volumetric
> lights and transparency maps. The trees in the scene are targe images
> with transparency maps. All lights are set to transparent shadows so
> the lens flares show up appropriately blocked by those parts of the
> targa image that are not transparent and shine through the transparent
> sections.
>
> The problem is that this is not the case for the volumetric lights.
> Here, they are obscured by the plane that has the tree targa image
> mapped to it. This can be scene in the following image:
>
> http://home.comcast.net/~dianeangelini/Stills/ufo_bad_render.jpg
>
> Note the volumetric light on the right. See how it is obscured by the
> plane. I have tried it with ray-tracing as well as ray-scan. The tree
> plane has had shadow casting enabled as well as dis-abled. It has been
> both single and double sided. The only option that I have yet to try to
> allow the plane to receive shadows, but I don't see how that would
> affect the volumetric lights. There is another plane 90 degrees to the
> plane holding the tree image that uses a shader to render it invisible,
> but it holds just the tree mask (with appropriate transparent mask) and
> is used to cast a correct shadow for the tree. That "shadow" plane also
> has shadow casting enabled.
>
> So how do you get volumetric lights to transmit through transparent
> planes? Any help would be appreciated.
>
> Thanks,
>
> Dave Angelini
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