FindUSD.cmake (untested)

cmake/CMakeLists.txt

@@ -312,49 +312,7 @@ endif()
 
 # Add USD support to serializers
 if(USD_SUPPORT)
-    UNIFY_ENVVARS_AND_CACHE(USD_INCLUDE_DIR)
-    UNIFY_ENVVARS_AND_CACHE(USD_LIBRARY_DIR)
-
-    if("${USD_INCLUDE_DIR}" STREQUAL "")
-        find_path(USD_INCLUDE_DIR pxr.h
-            PATHS
-                /usr/include/pxr
-                /usr/local/include/pxr
-            REQUIRED
-        )
-        if(USD_INCLUDE_DIR)
-            message(STATUS "Found USD include files in: ${USD_INCLUDE_DIR}")
-        else()
-            message(FATAL_ERROR "Unable to find USD include directory, specify USD_INCLUDE_DIR manually.")
-        endif()
-    else()
-        set(USD_INCLUDE_DIR ${USD_INCLUDE_DIR} CACHE FILEPATH "USD header files")
-        message(STATUS "Looking for USD include files in: ${USD_INCLUDE_DIR}")
-    endif()
-
-    set(USD_LIBRARIES
-            usd_usd
-            usd_usdGeom
-            usd_usdShade
-            usd_usdLux
-            usd_vt
-            usd_sdf
-            usd_tf
-            usd_gf
-        )
-
-    find_library(USD_LIBRARY
-        NAMES ${USD_LIBRARIES}
-        PATHS ${USD_LIBRARY_DIR})
-    if(USD_LIBRARY)
-        message(STATUS "USD libraries ${USD_LIBRARIES} found in: ${USD_LIBRARY_DIR}")
-        link_directories(${USD_LIBRARY_DIR})
-    else()
-        message(FATAL_ERROR "Unable to find USD libraries in: ${USD_LIBRARY_DIR}")
-    endif()
-
-    add_definitions(-DWITH_USD)
-    set(SWIG_DEFINES ${SWIG_DEFINES} -DWITH_USD)
+    find_package(USD REQUIRED)
 endif(USD_SUPPORT)
 
 if (WITH_ROCKSDB)

cmake/FindUSD.cmake

@@ -0,0 +1,54 @@
+#
+# Input variables:
+# - `USD_INCLUDE_DIR`
+# - `USD_LIBRARY_DIR`
+# Input variables could also be provided as environment variables.
+# TODO: Try to find USD config if varibales are not provided.
+# TODO: does usd have a config file?
+#
+# Output variables:
+# - `USD_LIBRARIES`
+
+UNIFY_ENVVARS_AND_CACHE(USD_INCLUDE_DIR)
+UNIFY_ENVVARS_AND_CACHE(USD_LIBRARY_DIR)
+
+if("${USD_INCLUDE_DIR}" STREQUAL "")
+    find_path(USD_INCLUDE_DIR pxr.h
+        PATHS
+            /usr/include/pxr
+            /usr/local/include/pxr
+        REQUIRED
+    )
+    if(USD_INCLUDE_DIR)
+        message(STATUS "Found USD include files in: ${USD_INCLUDE_DIR}")
+    else()
+        message(FATAL_ERROR "Unable to find USD include directory, specify USD_INCLUDE_DIR manually.")
+    endif()
+else()
+    set(USD_INCLUDE_DIR ${USD_INCLUDE_DIR} CACHE FILEPATH "USD header files")
+    message(STATUS "Looking for USD include files in: ${USD_INCLUDE_DIR}")
+endif()
+
+set(USD_LIBRARIES
+        usd_usd
+        usd_usdGeom
+        usd_usdShade
+        usd_usdLux
+        usd_vt
+        usd_sdf
+        usd_tf
+        usd_gf
+    )
+
+find_library(USD_LIBRARY
+    NAMES ${USD_LIBRARIES}
+    PATHS ${USD_LIBRARY_DIR})
+if(USD_LIBRARY)
+    message(STATUS "USD libraries ${USD_LIBRARIES} found in: ${USD_LIBRARY_DIR}")
+    link_directories(${USD_LIBRARY_DIR})
+else()
+    message(FATAL_ERROR "Unable to find USD libraries in: ${USD_LIBRARY_DIR}")
+endif()
+
+add_definitions(-DWITH_USD)
+set(SWIG_DEFINES ${SWIG_DEFINES} -DWITH_USD)