FindosgViewer

Finds the osgViewer library from the OpenSceneGraph toolkit.

Note

In most cases, it's recommended to use the FindOpenSceneGraph module instead and list osgViewer as a component. This will automatically handle dependencies such as the OpenThreads and core osg libraries:

find_package(OpenSceneGraph COMPONENTS osgViewer)

This module is used internally by FindOpenSceneGraph to find the osgViewer library. It is not intended to be included directly during typical use of the find_package() command. However, it is available as a standalone module for advanced use cases where finer control over detection is needed. For example, to find the osgViewer explicitly or bypass automatic component detection:

find_package(osgViewer)

OpenSceneGraph and osgViewer headers are intended to be included in C++ project source code as:

example.cxx
#include <osg/PositionAttitudeTransform>
#include <osgViewer/Viewer>
// ...

When working with the OpenSceneGraph toolkit, other libraries such as OpenGL may also be required.

Result Variables

This module defines the following variables:

osgViewer_FOUND

Added in version 3.3.

Boolean indicating whether the osgViewer library of the OpenSceneGraph toolkit was found.

OSGVIEWER_LIBRARIES

The libraries needed to link against to use osgViewer.

OSGVIEWER_LIBRARY

A result variable that is set to the same value as the OSGVIEWER_LIBRARIES variable.

Cache Variables

The following cache variables may also be set:

OSGVIEWER_INCLUDE_DIR

The include directory containing headers needed to use osgViewer.

OSGVIEWER_LIBRARY_DEBUG

The path to the osgViewer debug library.

Hints

This module accepts the following variables:

OSGDIR

Environment variable that can be set to help locate the OpenSceneGraph toolkit, including its osgViewer library, when installed in a custom location. It should point to the OpenSceneGraph installation prefix used when it was configured, built, and installed: ./configure --prefix=$OSGDIR.

Deprecated Variables

The following variables are provided for backward compatibility:

OSGVIEWER_FOUND

Deprecated since version 4.2: Use osgViewer_FOUND, which has the same value.

Boolean indicating whether the osgViewer library of the OpenSceneGraph toolkit was found.

Examples

Finding osgViewer explicitly with this module and creating an interface imported target that encapsulates its usage requirements for linking it to a project target:

find_package(osgViewer)

if(osgViewer_FOUND AND NOT TARGET osgViewer::osgViewer)
  add_library(osgViewer::osgViewer INTERFACE IMPORTED)
  set_target_properties(
    osgViewer::osgViewer
    PROPERTIES
      INTERFACE_INCLUDE_DIRECTORIES "${OSGVIEWER_INCLUDE_DIR}"
      INTERFACE_LINK_LIBRARIES "${OSGVIEWER_LIBRARIES}"
  )
endif()

target_link_libraries(example PRIVATE osgViewer::osgViewer)

See Also