Hi Joakim, The easiest way is to use the osgFX::MultiTextureControl node as this allows you to set the relative weights to use for each texture unit. It just so happens that yesterday I wrote and checked in an osgmultitexturecontrol example as well - this example adjusts the weights as you change height so different layers fade in at different heights.
Robert. On Tue, Mar 4, 2008 at 12:39 PM, Joakim Simonsson <[EMAIL PROTECTED]> wrote: > > Hello all OSGers! > > I have two simple questions. > > > Question 1: > > I have two texture layers, L0 and L1 > > What is the best way in OSG to crossfade between these? > > What I want is: L0 * (a) + L1 * (1 - a) > > I think it must be either osg::TexEnv or osg::TexEnvCombine. But how > should they be setup? > > > > Question 2: > Is it more efficient to do this operation in a shader? > > > -- > Joakim Simonsson > _______________________________________________ > 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
