If I make a setcolor(R,G,B,0.5) the transparency is OK, so I can assume this will be OK dynamically.
But for the moment I use a setOpacity function, based on material... If there is no way to use this function, I'll try directly on the tranparency component of the color... but if it possible to use it, I would prefer. 2008/11/19 Sukender <[EMAIL PROTECTED]> > Try to assign a signle color and BIND_OVERALL-it to the sphere. Change then > the transparency dynamically, and tell me what happens! > > Sukender > PVLE - Lightweight cross-platform game engine - > http://pvle.sourceforge.net/ > > > Le Wed, 19 Nov 2008 17:32:52 +0100, Vincent Bourdier < > [EMAIL PROTECTED]> a écrit: > > > Hi, > > > > 2008/11/19 Sukender <[EMAIL PROTECTED]> > > > >> > Yes, I have a partially white sphere. I cannot set specular OFF, I > need > >> it > >> > for others nodes in the scene. I cannot modify light in fact. > >> > So I need to change skymap parameters. > >> > >> Yes, set the material of your sky sphere to have no specular component. > >> > >> > >> > If I put lighting OFF, the opacity do not seems to work... > >> > >> Did you use GL_BLEND and TRANSPARENT_BIN as David said ? > >> Try to set a color for the vertices (forget about the material, that's > for > >> lighting). > >> > > > > Okay, it changes the color, that's true. With this, I do not need no > > material anymore. But ... (see next) > > > >> > >> > >> > How can I combine : no ligthing area visible on skymap and opacity > >> which > >> > can be changed ? > >> > >> I don't understand your sentence... (sorry). Do you mean you wish your > sky > >> sphere to have a transparency that you change over time? > >> If so, there nothing special to do. Just try to make transparency work > when > >> disable lighting. > >> > > > > Exactly ! ...But to change opacity I use material to set my own > transparency > > value... So I need material to do that. > > > > So for now, the problem is : I need material to change opacity value > along > > the time, and I need no material to avoid lighting on the sphere... > > > > Nice dilemma, isn't it ? :-( > > > > thanks, > > > > Vincent. > > > > > >> > >> > Thanks for help. > >> > >> De rien (= you're welcome = de nada = etc.). > >> > >> > >> Sukender > >> PVLE - Lightweight cross-platform game engine - > >> http://pvle.sourceforge.net/ > >> > >> > >> >> Hi Vincent, > >> >> > >> >> I'm not sure I understand... do you mean your blue sky sphere appears > >> >> partially white because of lighting? If yes, try disabling specular > >> >> components (on both light and sphere material if needed), this may be > >> that > >> >> white spot. Or did you set light colors components >1? > >> >> And as far that I know, opacity is not related to lighting: you can > have > >> a > >> >> semi-transparent sphere with lighting disabled. > >> >> > >> >> Sukender > >> >> PVLE - Lightweight cross-platform game engine - > >> >> http://pvle.sourceforge.net/ > >> >> > >> >> Le Wed, 19 Nov 2008 16:28:41 +0100, Vincent Bourdier < > >> >> [EMAIL PROTECTED]> a écrit: > >> >> > >> >> > Hi, > >> >> > > >> >> > Making a new king of skymap, I have this problem : the light > source, > >> >> closer > >> >> > to the skymap (sphere with blue material only), make it render > white, > >> >> > because of the lighting... > >> >> > I want to obtain the same thing without this white area... > >> >> > > >> >> > I need to manage opacity of this sphere, so Lighting ON seems to be > >> >> > necessary, no ? > >> >> > > >> >> > The fact is I need a coloredsphere, not having this lighting area > >> >> becoming > >> >> > white, and able to be set transparent. > >> >> > > >> >> > Any Idea ? > >> >> > > >> >> > I've tried changing lighting ON/OFF, material FRONT, BACK, FRONT > and > >> >> BACK, > >> >> > Emission component, Ambiant component... > >> >> > > >> >> > Thanks. > >> >> > > >> >> > Regards, > >> >> > Vincent. > >> >> > >> >> _______________________________________________ > >> >> osg-users mailing list > >> >> [email protected] > >> >> > >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >> > >> _______________________________________________ > >> osg-users mailing list > >> [email protected] > >> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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