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000150_owner-lightwave-l _Mon Oct 10 21:10:04 1994.msg
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1995-03-23
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Date: Mon, 10 Oct 1994 17:44:58 -700 (PDT)
From: Sean Martin <smartin@cts.com>
To: lightwave-l@netcom.com
Subject: Re: Dissolving Shadow Maps
In-Reply-To: <9410101436.D5996VB@cml.com>
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On Mon, 10 Oct 1994 jhoward@cml.com wrote:
>
> Recently, while dissolving on text as part of a logo (yeah, I know...;)
> another logo...gotta pay the bills) animation, I found that the shadow map
> doesn't dissolve on with the object, it pops on. Short of creating a
> fake shadow - a black version of the object with soft edges- the only
> other way I've been able to resolve this is with a whole re-render of
> the scene and then compositing the two versions with a fade. Any
> thoughts?
> Also, when limiting the shadow map area, it seems to create a perfectly
> cropped rectangle, even when I target the lights as directly as
> possible.
> I'm game for any eloquent solutions.
> Jeff
>
If you want fading shadows you are going to have to use ray-traced
shadows, shadow maps have no degree of instensity.
Sean