Use GLM for matrix math and add alpha composite

Include/glm/CMakeLists.txt

@@ -0,0 +1,66 @@
+file(GLOB ROOT_SOURCE *.cpp)
+file(GLOB ROOT_INLINE *.inl)
+file(GLOB ROOT_HEADER *.hpp)
+file(GLOB ROOT_TEXT ../*.txt)
+file(GLOB ROOT_MD ../*.md)
+file(GLOB ROOT_NAT ../util/glm.natvis)
+
+file(GLOB_RECURSE CORE_SOURCE ./detail/*.cpp)
+file(GLOB_RECURSE CORE_INLINE ./detail/*.inl)
+file(GLOB_RECURSE CORE_HEADER ./detail/*.hpp)
+
+file(GLOB_RECURSE EXT_SOURCE ./ext/*.cpp)
+file(GLOB_RECURSE EXT_INLINE ./ext/*.inl)
+file(GLOB_RECURSE EXT_HEADER ./ext/*.hpp)
+
+file(GLOB_RECURSE GTC_SOURCE ./gtc/*.cpp)
+file(GLOB_RECURSE GTC_INLINE ./gtc/*.inl)
+file(GLOB_RECURSE GTC_HEADER ./gtc/*.hpp)
+
+file(GLOB_RECURSE GTX_SOURCE ./gtx/*.cpp)
+file(GLOB_RECURSE GTX_INLINE ./gtx/*.inl)
+file(GLOB_RECURSE GTX_HEADER ./gtx/*.hpp)
+
+file(GLOB_RECURSE SIMD_SOURCE ./simd/*.cpp)
+file(GLOB_RECURSE SIMD_INLINE ./simd/*.inl)
+file(GLOB_RECURSE SIMD_HEADER ./simd/*.h)
+
+source_group("Text Files" FILES ${ROOT_TEXT} ${ROOT_MD})
+source_group("Core Files" FILES ${CORE_SOURCE})
+source_group("Core Files" FILES ${CORE_INLINE})
+source_group("Core Files" FILES ${CORE_HEADER})
+source_group("EXT Files" FILES ${EXT_SOURCE})
+source_group("EXT Files" FILES ${EXT_INLINE})
+source_group("EXT Files" FILES ${EXT_HEADER})
+source_group("GTC Files" FILES ${GTC_SOURCE})
+source_group("GTC Files" FILES ${GTC_INLINE})
+source_group("GTC Files" FILES ${GTC_HEADER})
+source_group("GTX Files" FILES ${GTX_SOURCE})
+source_group("GTX Files" FILES ${GTX_INLINE})
+source_group("GTX Files" FILES ${GTX_HEADER})
+source_group("SIMD Files" FILES ${SIMD_SOURCE})
+source_group("SIMD Files" FILES ${SIMD_INLINE})
+source_group("SIMD Files" FILES ${SIMD_HEADER})
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/..)
+
+if(BUILD_STATIC_LIBS)
+add_library(glm_static STATIC ${ROOT_TEXT} ${ROOT_MD} ${ROOT_NAT}
+	${ROOT_SOURCE}    ${ROOT_INLINE}    ${ROOT_HEADER}
+	${CORE_SOURCE}    ${CORE_INLINE}    ${CORE_HEADER}
+	${EXT_SOURCE}     ${EXT_INLINE}     ${EXT_HEADER}
+	${GTC_SOURCE}     ${GTC_INLINE}     ${GTC_HEADER}
+	${GTX_SOURCE}     ${GTX_INLINE}     ${GTX_HEADER}
+	${SIMD_SOURCE}    ${SIMD_INLINE}    ${SIMD_HEADER})
+endif()
+
+if(BUILD_SHARED_LIBS)
+add_library(glm_shared SHARED ${ROOT_TEXT} ${ROOT_MD} ${ROOT_NAT}
+	${ROOT_SOURCE}    ${ROOT_INLINE}    ${ROOT_HEADER}
+	${CORE_SOURCE}    ${CORE_INLINE}    ${CORE_HEADER}
+	${EXT_SOURCE}     ${EXT_INLINE}     ${EXT_HEADER}
+	${GTC_SOURCE}     ${GTC_INLINE}     ${GTC_HEADER}
+	${GTX_SOURCE}     ${GTX_INLINE}     ${GTX_HEADER}
+	${SIMD_SOURCE}    ${SIMD_INLINE}    ${SIMD_HEADER})
+endif()
+