I think the internal format of your osg::Image should be set to GL_RGBA8 not GL_RGBA, which is a pixel format not an internal format. I find the OpenGL 2.1 documentation very confusing on the use of internal format and pixel format, but I think the 3.3 and 4.2 documentation is much easier to understand. So check it out to verify what I'm saying.
http://www.opengl.org/sdk/docs/ Also, I insetad of setting the think you osg::Texture2D lut should set its internal format mode to osg::Texture::USE_IMAGE_DATA_FORMAT (actually that is the default, but when you call setInternalFormat it changes the mode to osg::Texture::USE_USER_DEFINED_FORMAT). So I think just removing the call to setInternalFormat on the texture will suffice. Change this: Code: image->setImage(width, height, 1 ,GL_RGBA,GL_RGBA,GL_UNSIGNED_BYTE, (unsigned char*)data,osg::Image::NO_DELETE); to this: Code: image->setImage(width, height, 1 ,GL_RGBA8,GL_RGBA,GL_UNSIGNED_BYTE, (unsigned char*)data,osg::Image::NO_DELETE); and this: Code: lutTexture->setInternalFormat(GL_RGBA); to this: Code: lutTexture->setInternalFormatMode(osg::Texture::USE_IMAGE_DATA_FORMAT); Alex ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=45542#45542 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
