cmake RT examples

u3d-community/U3D Source/ThirdParty/Assimp/code/CMakeLists.txt :1216 

FIND_PACKAGE(RT QUIET)

RavEngine/RavEngine deps/assimp/code/CMakeLists.txt :1210 

FIND_PACKAGE(RT QUIET)

google/filament third_party/libassimp/code/CMakeLists.txt :1013 

FIND_PACKAGE(RT QUIET)

vseasky/VersaAssistant assimp/code/CMakeLists.txt :1059 

FIND_PACKAGE(RT QUIET)

beyond-all-reason/RecoilEngine rts/lib/assimp/code/CMakeLists.txt :796 

FIND_PACKAGE(RT QUIET)

MBU-Team/OpenMBU engine/lib/assimp/code/CMakeLists.txt :1056 

FIND_PACKAGE(RT QUIET)

meemknight/ourCraft thirdparty/assimp-5.2.4/code/CMakeLists.txt :1058 

FIND_PACKAGE(RT QUIET)

letoram/arcan src/CMakeLists.txt :51 

find_package(RT REQUIRED)