Hello Robert, Thank you. I have some problem when I try to run iPhone example of the OSG source. After referring to this post(http://forum.openscenegraph.org/viewtopic.php?t=14385 ), I figured out both the "VERTEX xxx failed" problem and "texture not support" problem by adding Code: static const char gVertexShader1[] = "varying vec2 v_texCoord; \n" "void main() { \n" " gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; \n" " v_texCoord = gl_MultiTexCoord0.xy; \n" "} \n"; static const char gFragmentShader1[] = "varying mediump vec2 v_texCoord; \n" "uniform sampler2D sam; \n" "void main() { \n" "gl_FragColor = texture2D(sam, v_texCoord); \n" "} \n"; osg::Shader* vShader = new osg::Shader( osg::Shader::VERTEX, gVertexShader1 ); osg::Shader* fShader = new osg::Shader( osg::Shader::FRAGMENT, gFragmentShader1 ); osg::Program* program = new osg::Program; program->addShader( vShader ); program->addShader( fShader ); _root->getorcreatestateset->setAttribute( program );
Although the problem has been solved, I still do not know why it works after adding this code. Thank you very much. Best regards, NIE robertosfield wrote: > Hi Nie, > > > iOS only support OpenGL ES, so you only can compile against GLES1 or 2, if > you want to do graphics on iOS then you have no choice beyond these. These > two versions of GLES are very different so you'll need to tackle both very > differently so you'll need to decide which route you want to go. > > Robert. > > > > > On 28 November 2014 at 06:04, Nie Junxiao < ()> wrote: > > > Hello Robert, > > Thank you for replying. > > I have checked osgtexture1D example and apply it to my source > > code(actually it is an iOS app). Then I found that I have built osglib > > using GLES_1_available and GLES_2_available, which makes texture1D not > > available in osg( err<<"texgen not supported" ). Is there an alternative > > way to use texture1D, or I have to rebuild osglib with GLES_1_available and > > GLES_2_available off? I think that I am not using GLES in my project. > > > > Thank you. > > NIE > > > > ------------------ > > Read this topic online here: > > http://forum.openscenegraph.org/viewtopic.php?p=61899#61899 > > (http://forum.openscenegraph.org/viewtopic.php?p=61899#61899) > > > > > > > > > > > > _______________________________________________ > > osg-users mailing list > > () > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > (http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org) > > > > > > > > > ------------------ > Post generated by Mail2Forum ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=61953#61953 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
