Hi,
I've successfully compiled and executed a simple ray-tracer using OSL.
Though, this renderer was included together with OSL source code and they
were compiled together too. Now, I'm trying to compile this renderer outside
OSL build. Though, I've been stuck with compilation errors for three days.
I've tried to reduce the code so the error may be spot easily. The
compilation error I get is the following:
Undefined symbols:
"typeinfo for OSL::RendererServices", referenced from:
typeinfo for OSL::SimpleRendererin simplerend.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[2]: *** [testrender] Error 1
make[1]: *** [CMakeFiles/testrender.dir/all] Error 2
make: *** [all] Error 2
I've read that this may be related to the fact that virtual methods were not
implemented in the derived class. My CMakeLists.txt is the following:
ADD_EXECUTABLE ( testrender testrender.cpp)
set (CMAKE_MODULE_PATH "cmake")
include(util_macros)
# Find dependencies
include(boost) # copied from OSL cmakelists
include(FindOpenEXR) # copied from OSL cmakelists
include(FindTBB) # copied from OSL cmakelists
include(FindOSL)
include(oiio) # copied from OSL cmakelists
include_directories(${OPENIMAGEIO_INCLUDES} ${OSLEXEC_INCLUDES}/OSL)
TARGET_LINK_LIBRARIES ( testrender ${OSLEXEC_LIBRARY}
${OSLCOMP_LIBRARY} ${OSLQUERY_LIBRARY} ${OPENIMAGEIO_LIBRARY}
${Boost_LIBRARIES})
My FindOSL.cmake file is:
find_library (OSLEXEC_LIBRARY
NAMES oslexec
PATHS /Users/kunigami/dev/osl/dist/macosx/lib
)
find_path (OSLEXEC_INCLUDES
NAMES OSL/osl.h
PATHS /Users/kunigami/dev/osl/dist/macosx/include
)
find_library (OSLCOMP_LIBRARY
NAMES oslcomp
PATHS /Users/kunigami/dev/osl/dist/macosx/lib
)
find_path (OSLCOMP_INCLUDES
NAMES OSL/osl.h
PATHS /Users/kunigami/dev/osl/dist/macosx/include
)
find_library (OSLQUERY_LIBRARY
NAMES oslquery
PATHS /Users/kunigami/dev/osl/dist/macosx/lib
)
find_path (OSLQUERY_INCLUDES
NAMES OSL/oslquery.h
PATHS /Users/kunigami/dev/osl/dist/macosx/include
)
The file I'm trying to compile is 'testrender.cpp':
http://pastebin.com/HmstAteR
The file where RendererServices is defined is called 'oslexec.h' and is part
of OSL: http://pastebin.com/0FGDnSve
Note that 'RendererServices' contains several "pure virtual methods", but
I'm implementing them all in the derived class SimpleRenderer at
testrender.cpp. Also, when I compile testender.cpp together with the OSL
library, this compile error does not happen. In this case, the
CMakeLists.txt is a bit different, because we have references to oslexec,
oslcomp and oslquery:
ADD_EXECUTABLE ( testrender testrender.cpp)
TARGET_LINK_LIBRARIES ( testrender oslexec oslcomp oslquery
${OPENIMAGEIO_LIBRARY} ${Boost_LIBRARIES})
INSTALL ( TARGETS testrender RUNTIME DESTINATION bin )
Does anyone have any idea on what might be happening?
Thanks,
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