Hi Robert. Perhaps i'm not very clear in what i intend to do : I want to create a sphere to simulate the earth. for texturing it, i use 2 textures : one of the sea and lands, one of the clouds. the second one can be with opacity (to keep only clouds). I would just put the 2 textures on the earth, with the opacity of the clouds map, to obtain something a little bit realistic.
I am new with OSG applications so I am still searching how to do basic things like that... Thanks. 2008/2/25, Robert Osfield <[EMAIL PROTECTED]>: > > HI Vincent, > > Perhaps everybody else like me is a bit confused by what you are > actually after. The OSG supports multi-texturing, and shaders, the > plugins are all orthogonal to final readering - all in all is most > likely what you are trying to do is very straightforward. I can't > really glean exactly what the problem might be, perhaps you are just > tackling it in an awkward way that is confusing things. > > Robert. > > > On Mon, Feb 25, 2008 at 8:26 AM, Vincent Bourdier > <[EMAIL PROTECTED]> wrote: > > Hello, > > > > I will make my own answer : > > I used osg::Image to obtain the unsigned char* data array, and i use it > to > > melt the two pictures in one. > > > > data[n] = osg::maximum(Edata[n], (unsigned char)Cdata[i]); > > > > This is not a the solution of the problem, but it can solve it, when no > > other solution exist. (Be carefull to the depth of the Image) > > > > If someone have anther solution, I'll be interested. > > > > Thank you. > > > > > > 2008/2/21, Vincent Bourdier <[EMAIL PROTECTED]>: > > > > > Hello > > > > > > I am trying to put 2 Texture2D on the same geometry. > > > > > > The backgroud texture is a .jpg file and the foregroud texture is a > .png > > file with opacity (clouds map). > > > > > > If I use them normally, the foregroud texture is in good position, but > in > > place of the transparent's pixels the is only a dark (black) color, and > in > > place of the clouds pixels, I can see the background picture... > > > > > > if I convert .png file in .jpg(without transparency) it does nothing > at > > all. > > > and in .gif it does something strange, with a hight level of opacity > (very > > transparent) and the white color of the clouds is not visible... > > > > > > Is there some picture formats recomendations ? > > > How to manage 2 textures on the same geometry ? (melting them) > > > > > > Thanks > > > > > > > > > > > > > _______________________________________________ > > 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
