Re: Announcing shadow rendering feature

[James W. <ja...@fr...>]

James W. Walker wrote:
> On Jun 6, 2007, at 9:04 AM, James W. Walker wrote:
> 
>> On Jun 6, 2007, at 2:22 AM, Daniele Cavallini wrote:
>>
>>> Do you think It will be possibile work with orthographic cameras into
>>> future?
>> I don't know how.  The problem is that the shadow volume algorithm
>> involves rendering infinite points, which requires setting yon to
>> infinity.  But there is no sensible way to set yon to infinity for an
>> orthographic camera.
> 
> I read something saying that if you have the GL_NV_depth_clamp  
> extension, you can do it without an infinite yon.

Daniele, you might want to try it with an orthographic camera.  On the 
6th, I changed the shadow code so that it does not use infinite yon if 
the camera is orthographic, and the code already uses GL_NV_depth_clamp 
if that extension is available.
-- 
   James W. Walker, Innoventive Software LLC
   <http://www.frameforge3d.com/>