That parameter is exactly what I was looking for, thanks!
On 1/5/2011 3:36 PM, Wojciech Lewandowski wrote:
Hi Peter,
Try using MinLightMargin parameter. May help somtimes. Look at the
attached picture for its meaning.
Cheers,
Wojtek Lewandowski
-Oryginalna wiadomość- From: Peter Amstutz
Sent: Wednesday, January 05, 2011 7:37 PM
To: OpenSceneGraph Users
Subject: [osg-users] osgShadow clipping shadows cast from off-camera
objects
Hello all,
I am trying to add dynamic shadows to my scene and so far
osgShadow::LightSpacePerspectiveShadowMapVB seems to produce the best
results [*]. Unfortunately, one problem I am encountering is that
shadows cast by geometry located to the side or behind the camera get
clipped, leading to a number of artifacts. For example, standing
outside a building with the sun to your back, the shadow map correctly
projects the outline of a doorway onto the floor. However, once the
camera enters the building, the wall is clipped and this causes the
entire room to be illuminated. This is a very noticeable and
undesirable effect. How can I mitigate this problem?
[*] I had high hopes for PSSM based on reading about the technique but
so far neither osg 2.8.3 nor 2.9.10 produce correct results for me.
Thanks!
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Peter Amstutz
Senior Software Engineer
Technology Solutions Experts
Natick, MA
02131
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