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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file LICENSE.rst or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindosgTerrain
--------------
Finds the osgTerrain NodeKit from the OpenSceneGraph toolkit.
.. note::
In most cases, it's recommended to use the :module:`FindOpenSceneGraph` module
instead and list osgTerrain as a component. This will automatically handle
dependencies such as the OpenThreads and core osg libraries:
.. code-block:: cmake
find_package(OpenSceneGraph COMPONENTS osgTerrain)
This module is used internally by :module:`FindOpenSceneGraph` to find the
osgTerrain NodeKit. It is not intended to be included directly during typical
use of the :command:`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 osgTerrain explicitly or bypass automatic
component detection:
.. code-block:: cmake
find_package(osgTerrain)
OpenSceneGraph and osgTerrain headers are intended to be included in C++ project
source code as:
.. code-block:: c++
:caption: ``example.cxx``
#include <osg/PositionAttitudeTransform>
#include <osgTerrain/Terrain>
// ...
When working with the OpenSceneGraph toolkit, other libraries such as OpenGL may
also be required.
Result Variables
^^^^^^^^^^^^^^^^
This module defines the following variables:
``osgTerrain_FOUND``
Boolean indicating whether the osgTerrain NodeKit of the OpenSceneGraph
toolkit is found. For backward compatibility, the ``OSGTERRAIN_FOUND``
variable is also set to the same value.
``OSGTERRAIN_LIBRARIES``
The libraries needed to link against to use osgTerrain.
``OSGTERRAIN_LIBRARY``
A result variable that is set to the same value as the
``OSGTERRAIN_LIBRARIES`` variable.
Cache Variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``OSGTERRAIN_INCLUDE_DIR``
The include directory containing headers needed to use osgTerrain.
``OSGTERRAIN_LIBRARY_DEBUG``
The path to the osgTerrain debug library.
Hints
^^^^^
This module accepts the following variables:
``OSGDIR``
Environment variable that can be set to help locate the OpenSceneGraph
toolkit, including its osgTerrain NodeKit, when installed in a custom
location. It should point to the OpenSceneGraph installation prefix used when
it was configured, built, and installed: ``./configure --prefix=$OSGDIR``.
Examples
^^^^^^^^
Finding osgTerrain explicitly with this module and creating an interface
:ref:`imported target <Imported Targets>` that encapsulates its usage
requirements for linking it to a project target:
.. code-block:: cmake
find_package(osgTerrain)
if(osgTerrain_FOUND AND NOT TARGET osgTerrain::osgTerrain)
add_library(osgTerrain::osgTerrain INTERFACE IMPORTED)
set_target_properties(
osgTerrain::osgTerrain
PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${OSGTERRAIN_INCLUDE_DIR}"
INTERFACE_LINK_LIBRARIES "${OSGTERRAIN_LIBRARIES}"
)
endif()
target_link_libraries(example PRIVATE osgTerrain::osgTerrain)
See Also
^^^^^^^^
* The :module:`FindOpenSceneGraph` module to find OpenSceneGraph toolkit.
#]=======================================================================]
# Created by Eric Wing.
include(${CMAKE_CURRENT_LIST_DIR}/Findosg_functions.cmake)
OSG_FIND_PATH (OSGTERRAIN osgTerrain/Terrain)
OSG_FIND_LIBRARY(OSGTERRAIN osgTerrain)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(osgTerrain DEFAULT_MSG
OSGTERRAIN_LIBRARY OSGTERRAIN_INCLUDE_DIR)
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