Michal Krol wrote: > On 06/10/06, David Cole <[EMAIL PROTECTED]> wrote: > >>First post to mesa lists... hopefully this is the right place for this >>question: >> >>The ability to icorporate custom GLSL shaders was recently added to VTK. >>However, our tests of this fail when VTK is linked using mesa apparently >>because there is no glIsProgram symbol. We use an OpenGL extensions >>manager object to query for it and it's not there. Are we doing >>something wrong or is there something missing from mesa?? >> > > > GL_ARB_shader_objects extension does not define glIsProgram function. > To check if a given program handle is valid, simply test it against 0.
David, are you clear on the difference between "programs" and "shaders" and the various extensions for them? OpenGL 2.0 defines both glIsProgram() and glIsShader(). But neither is in Mesa since Mesa isn't at the 2.0 level yet. -Brian ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
