Hi. I've decided to try to take shadow map from osgShadow::ShadowMap. I've derived own ShadowMap class to access the shadow texture: http://goo.gl/M3o04y I display it, but it's completely white. I tried to place the light nearer to the moving objects (even at the same height), but the texture is still white. What am I doing wrong? Thanks.
2013/10/21 michael kapelko <[email protected]> > Hi. > Can the third bug be related to different view projection matrices? My > shadow camera uses ortho. > Thanks. > > > 2013/10/21 Marcel Pursche <[email protected]> > >> Hi, >> >> the shadow on the wall is probably created, because the wall is outside >> of the shadow cameras view frustum. How do you setup the wrapping of your >> depth texture? You could fix it, if you set the mode to clamp to border and >> set the border "color" to your far plane. This way everything that cannot >> be seen from your light source will not be shadowed(as in is outside of the >> view frustum). >> The shadow on your torus looks like a self shadowing problem. You will >> always have some errors because of the limited floating point precision. >> You should use a small offset in your depth comparison to get rid of this >> artifacts. A bit of tweaking will be necessary to get a good value. >> The last bug is indeed a bit strange. I'm not sure how it is produced. >> But it is view dependent, so it must have to do something with the view >> matrix of your main camera. >> >> Thank you! >> >> Cheers, >> Marcel >> >> ------------------ >> Read this topic online here: >> http://forum.openscenegraph.org/viewtopic.php?p=56910#56910 >> >> >> >> >> >> _______________________________________________ >> osg-users mailing list >> [email protected] >> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >> > >
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