Add root CMakeLists.txt to facilitate project structure and subdirectory access

Author: euclid-skyline

CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required (VERSION 3.29)
+
+project (VulkanTutorialRoot)
+# This is to allow the CMakeLists.txt files in attachments/ to be accessed from root level
+# Use command: cmake -S . -B build to configure from root level
+add_subdirectory(attachments)
+
+# Any other subdirectories can be added here

attachments/CMakeLists.txt

@@ -95,7 +95,7 @@ function (add_shaders_target TARGET)
     COMMAND glslang::validator
     ARGS --target-env vulkan1.0 ${SHADER_SOURCES} --quiet
     WORKING_DIRECTORY ${SHADERS_DIR}
-    DEPENDS ${SHADERS_DIR} ${SHADER_SOURCES}
+    DEPENDS ${SHADER_SOURCES}
     COMMENT "Compiling Shaders"
     VERBATIM
     )
@@ -118,7 +118,7 @@ function (add_slang_shader_target TARGET)
           OUTPUT  ${SHADERS_DIR}/slang.spv
           COMMAND ${SLANGC_EXECUTABLE} ${SHADER_SOURCES} -target spirv -profile spirv_1_4+spvRayQueryKHR -emit-spirv-directly -fvk-use-entrypoint-name ${ENTRY_POINTS} -o slang.spv
           WORKING_DIRECTORY ${SHADERS_DIR}
-          DEPENDS ${SHADERS_DIR} ${SHADER_SOURCES}
+          DEPENDS ${SHADER_SOURCES}
           COMMENT "Compiling Slang Shaders"
           VERBATIM
   )
@@ -165,11 +165,11 @@ function (add_chapter CHAPTER_NAME)
     target_link_libraries (${CHAPTER_NAME} ${CHAPTER_LIBS})
   endif ()
   if (DEFINED CHAPTER_MODELS)
-    list(TRANSFORM CHAPTER_MODELS PREPEND "${CMAKE_SOURCE_DIR}/assets/")
+    list(TRANSFORM CHAPTER_MODELS PREPEND "${CMAKE_CURRENT_SOURCE_DIR}/assets/")
     file (COPY ${CHAPTER_MODELS} DESTINATION ${CMAKE_BINARY_DIR}/${CHAPTER_NAME}/models)
   endif ()
   if (DEFINED CHAPTER_TEXTURES)
-    list(TRANSFORM CHAPTER_TEXTURES PREPEND "${CMAKE_SOURCE_DIR}/assets/")
+    list(TRANSFORM CHAPTER_TEXTURES PREPEND "${CMAKE_CURRENT_SOURCE_DIR}/assets/")
     file (COPY ${CHAPTER_TEXTURES} DESTINATION ${CMAKE_BINARY_DIR}/${CHAPTER_NAME}/textures)
   endif ()
 endfunction ()