VRender | PM renderer based on OptiX and CUDA , accelerated by RTX tech | GPU library

Firts one, target_include_directories() has following syntax according official docs target_include_directories( [SYSTEM] [BEFORE] [items1...] [ [items2...] ...]) as you see there few keywords might be used:

• PRIVATE: adds directories to INCLUDE_DIRECTORIES property of
• INTERFACE: adds directories to INTERFACE_INCLUDE_DIRECTORIES property of
• PUBLIC: adds directories to INCLUDE_DIRECTORIES and INTERFACE_INCLUDE_DIRECTORIES properties of

What about those properties:

• INCLUDE_DIRECTORIES - contains list of directories to search header files you used in project
• INTERFACE_INCLUDE_DIRECTORIES - contains list of directories to search header files too, but it has transitivity, that means you able to inherit your include directories to project linked through target_link_libraries()

Second one, your code doesn't work because you are using another include folders paths, your source file must be contain something like #include but since you do not include root folder anymore (. in your previous code), but linking QGLViewer directly - you must type #include . Fix it for each #include you are using or add ${PROJECT_SOURCE_DIR} to target_include_directories instead.