Hi Marcus, sorry, I meen a need a plane to be shadowed. Can you give any suggestion in order to obtain this with opensg (ie in the example 21)?
Regards daniele > -----Messaggio originale----- > Da: [EMAIL PROTECTED] [mailto:opensg-users- > [EMAIL PROTECTED] Per conto di Marcus Lindblom > Inviato: giovedì 6 ottobre 2005 19.26 > A: [email protected] > Oggetto: Re: [Opensg-users] Shadowmapviewport and transparency > > Hi, > > I'm not clear, do you want the transparent plane to cast shadows or to > be shadowed? > > The latter should be technically possible (haven't tried it in opensg, > but I've coded a few such things myself). > > The former is a bit difficult, since partial transparency (and thus > partial shadow) is not readily obtainable with shadow maps (what depth > to put in the shadow map? You would need to track how much shadow/light > there is at different depths. Not possible today). Simple on/off > transparency (i.e. alpha testing) should be possible though. > > Regards, > /Marcus > > Daniele Pagliani wrote: > > > > > > Hi everyone, > > > > Im using the ShadomMapViewport and I need to have a transparent plane > > that casts shadows, but the shadow disappears when I set transparency in > > the plane material. I.e. using the tutorial 21Shadows, if I use a plane > > without texture and i set the transparency: > > > > > > > > SimpleMaterialPtr plane_mat = SimpleMaterial::create(); > > > > beginEditCP(plane_mat); > > > > plane_mat->setAmbient(Color3f(0.3,0.3,0.3)); > > > > plane_mat->setDiffuse(Color3f(1.0,1.0,1.0)); > > > > plane_mat->setTransparency(0.5); > > > > //plane_mat->addChunk(plane_tex); > > > > endEditCP(plane_mat); > > > > > > > > the shadow disappears. > > > > Does it exists a way to obtain shadow onto a transparent plane? > > > > > > > > > > > > Thank you. > > > > > > > > Regards > > > > > > > > Daniele > > > > > > > > > > > > > > > > > > > > > > > > > > > > ---------------------------------------------- > > > > > > > > ing. Daniele Pagliani > > > > Seac02 S.r.l. > > via Avogadro 4 > > 10121 Torino Italia > > Tel. +39.011.197.006.52 > > Fax +39.011.197.006.53 > > E-mail [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> > > > > > > > > www.seac02.it <http://www.seac02.it> > > > > > > > > > > > > > > > > > > Questa E-mail è rivolta unicamente alle persone o enti ai quali è > > indirizzata. Essa può contenere informazioni la cui riservatezza è > tutelata. > > Sono vietati la riproduzione e qualsiasi uso di questa e-mail e/o delle > > informazioni in essa contenute in mancanza di autorizzazione del > > destinatario. > > This e-mail is intended only for the person or entity to which is > addressed. > > It may contain information that is privileged, proprietary, > confidential, > > attorney work product or otherwise exempted from disclosure under > > applicable law. Copying, dissemination or use of this e-mail or the > > information herein by anyone other than the intended recipient is > > prohibited. > > > > > > > > > > > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Power Architecture Resource Center: Free content, downloads, discussions, > and more. http://solutions.newsforge.com/ibmarch.tmpl > _______________________________________________ > Opensg-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/opensg-users ------------------------------------------------------- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl _______________________________________________ Opensg-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/opensg-users
