Re: [osg-users] second-order equation
Hi Kurt, On Thu, Dec 2, 2010 at 6:09 AM, Cracj Kurt couple...@mail.ru wrote: Surface , for example z= sin(x)sin(y). I see only one solution. Calculate the value of a formula written into the matrix and show the shape. But may exist complete class or method... There are many solutions, but the one you suggest I can't make any sense from. Down on the gpu you can use sin functions, and the osgparametric example is a good example of this so have a look at it. The osgparametric example creates a large flat mesh with z value of 0, then it uses a vertex shader to take the x and y quantities to compute the z value, along with a uniform that provide a time varying quantity that animates the resulting mesh. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] second-order equation
Hi, how can I draw a second-order equation? what class\methods need use? Thank you! Cheers, kurt -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34265#34265 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] second-order equation
Hi Kurt, On Tue, Nov 30, 2010 at 3:16 PM, Cracj Kurt couple...@mail.ru wrote: how can I draw a second-order equation? An impressive lack of information to go on there... what do you mean by draw a second-order equation? What exactly are you expecting? Lines? Surfaces? Volumes? what class\methods need use? osgMindReader::DoAnythingICanImagineButNeedn'tBotherExplainingWhatImean class. Since I don't really know what you are after, I have to take the safe route and say the OSG can't do what you are wanting out of the box as we don't have a osgMindReader NodeKit yet. However, modern vertex shaders are very flexible and given the right input data and shader code can do pretty complex things with lines and surfaces. So I no doubt that if you can work out what you actually need then you can probably implement it. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] second-order equation
Surface , for example z= sin(x)sin(y). I see only one solution. Calculate the value of a formula written into the matrix and show the shape. But may exist complete class or method... -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=34384#34384 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
