Re: [osg-users] Blending Multiple Texture on one triangle mesh with coordinate control
thank you very much for your reply Robert. Sorry to reply late. I finally got it working. At the end i used texture3D instead of texture2D. One problem i had with texture was shadowing. Originally, i used ShadowMap, but some reason, the second texture never show up. the shadowmap doesn't seems to let me set any texture unit higher than 0. I have changed it to shadowtexture, and it works. I will tidy my code up and post it up to check if it is the most optimized. Once again, Many thanks for your help, we appreciate your time. Brian -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=32097#32097 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Blending Multiple Texture on one triangle mesh with coordinate control
Hi Brian, To do multi-texturing you simple need to assign a texture coordinate array per texture unit you want to address, with a texture coord per vertex. So if you want two texture's you'll need to assign two texture arrays. The method to use is osg::Geometry::setTextureCoordArray(unit, array). Then you need to set up with textures to use, which you use osg::StateSet::setTextureAttributeAndModes(myTexture, osg::StateAttribute::ON); A good example of geometry setup can be found in osggeometry, this doesn't do multi-texturing, but it does provide an code segment that sets up the StateSet and Geometry for a single texture, this code segment can easily be extended to do multi-texturing with the above suggestions. Another example that will be useful is osgmultitexture, this does multi-texturing, but rather than use another texture coord array it use tex gen to generate the coordinates. Robert. ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Blending Multiple Texture on one triangle mesh with coordinate control
Hi Alberto Thank you very much for your quick response. One of the reason our team has to do it via open scene graph is because our program has to modified the triangle mesh in real time, this include additional or removal or triangles. Therefore, (I may be wrong, because i m very new to 3D graphic) we can not do it via Blender or 3dMAX. Do you know if any function in osg i should look into to do that function? Many Thanks for your help and we appreciate your effort. Regards Brian -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31796#31796 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] Blending Multiple Texture on one triangle mesh with coordinate control
Brian Tse writes: Currently, I build a triangle mesh in osg (eg. triangle mesh is a teddy bear model) I want to implement 2 texture (eg. hair.jpg and skin.jpg) Is there a way i can blend 2 texture together on one single triangle mesh? (eg. hair.jpg showing on one side of the teddy bear model and skin.jpg showing on the other side?) Between them, they can blend together nicely in some way? In the other words, is there a way we can control the texture based on the mesh vertices coordinate information with multiple texture? Hi Brian, this is more a 3D modelling question rather than a programming question. Sure, you could do what you want with OSG, but modifying texture coordinates and assigning different materials to every polygon in the model is something that is best done in a 3D editor. Try to use one (www.blender.org, for example), and then feed your OSG program with the model you have done. -- Alberto ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
[osg-users] Blending Multiple Texture on one triangle mesh with coordinate control
Hi All I am very new to Open Scene Graph and please accept my apology if this is a very obvious question. Your answer is grateful appreciated. Currently, I build a triangle mesh in osg (eg. triangle mesh is a teddy bear model) I want to implement 2 texture (eg. hair.jpg and skin.jpg) Is there a way i can blend 2 texture together on one single triangle mesh? (eg. hair.jpg showing on one side of the teddy bear model and skin.jpg showing on the other side?) Between them, they can blend together nicely in some way? In the other words, is there a way we can control the texture based on the mesh vertices coordinate information with multiple texture? Thank you very much and sorry this might be a very obvious question. Your Answer will be very helpful. Brian -- Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=31690#31690 ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
