Re: [Algorithms] Occlusion maps for local lights via SH?

[<Pau...@sc...>]

On 03/12/2003 14:31:56 gdalgorithms-list-admin wrote: 

> Ah, right. But I'm not sure if this will give shadows by itself - you
> essentially convert from point light to directional light. I'm not sure 
how
> to say that -- it's like point light that's infinitely far away from all
> points :)

It will give you an approximation, which might look nice. Really, its just 
the
same approximation as with regular point lighting, isn't it?

> Yes, I just don't know the underlying expressions, how to project 
direction
> into SH in Cartesian coordinates quickly :) I know them for the first 9
> terms -- what's next?

Afraid I can't help you there. Maybe Mr. Sloan might be able to assist?

Cheers, Paul.


**********************************************************************
This email and any files transmitted with it are confidential and
intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error please notify
pos...@sc...

This footnote also confirms that this email message has been checked
for all known viruses.

**********************************************************************
 SCEE 2003