[osg-users] osgShadows

Hi, I am having a scene, large terrain and moving models. What is the best approach to have the scene shadowed? I tried couple of techniques, but the results are not good. Any hints ? Thanks! Nick http://www.linkedin.com/in/tnikolov Sent from Gümüşsuyu, İstanbul, Turkey

Re: [osg-users] osgShadows

Hi Nike, There is many way to get shadows and the shadowing technique choice shall depend of your scene data. The two basic shadowing techniques are : - shadow maps ( image based ) - shadow volumes ( geometry based ) Shadow maps are very cheap and easy to implement but will works good only

Re: [osg-users] osgShadows

Hi Harold, yes, my light source is the sun. No other lights in the scene yet. And the results are not good. I will do research on the cascade shadowmaps and will try to implement it. Thanks for the hint Nick http://www.linkedin.com/in/tnikolov Sent from Gümüşsuyu, İstanbul, Turkey On Wed, Dec

Re: [osg-users] osgShadows

Hi, Cascaded Shadow Maps is the same as Parallel Split Shadow Map. PSSM is implemented in osgShadow. Also LispSM could work for you scenario. Cheers, Wojtek Lewandowski From: Trajce Nikolov Sent: Wednesday, December 09, 2009 10:19 AM To: OpenSceneGraph Users Subject: Re: [osg-users

Re: [osg-users] osgShadows

scratch will be much much steeper. Wojtek From: Trajce Nikolov Sent: Wednesday, December 09, 2009 12:11 PM To: OpenSceneGraph Users Subject: Re: [osg-users] osgShadows I tried both. PSSM gives some artifacts (see the attached image) - the white in the background, also, some flickering

Re: [osg-users] osgShadows

:* Wednesday, December 09, 2009 10:19 AM *To:* OpenSceneGraph Users osg-users@lists.openscenegraph.org *Subject:* Re: [osg-users] osgShadows Hi Harold, yes, my light source is the sun. No other lights in the scene yet. And the results are not good. I will do research on the cascade shadowmaps