Here is a list of all typedefs with links to the classes they belong to:

### - u -

- uint32_t : osgAnimation::Vec3Packed
- UniformBlockBindingList : osg::Program
- UniformBlockMap : osg::Program
- UniformList : osg::StateSet, osgShadow::ShadowMap
- UniformMap : osg::State
- UniformModifiedCountPair : osg::Program::PerContextProgram
- UniformPair : osg::State::UniformStack
- Uniforms : osg::ShaderAttribute, osgShadow::ViewDependentShadowMap
- UniformVec : osg::State::UniformStack
- UniqueIDToLabelMapping : osgDB::Output
- UpdateCallback : osg::Drawable
- UsageMap : osg::ApplicationUsage
- UserStatsLines : osgViewer::StatsHandler
- UsingType : osgAnimation::TemplateChannel< SamplerType >, osgAnimation::TemplateCompositeSampler< VALUESAMPLERTYPE, TIMESAMPLERTYPE >, osgAnimation::TemplateInterpolatorBase< TYPE, KEY >, osgAnimation::TemplateSampler< F >