Cleanup on usage of static vs. dynamic loading (#462)

samples/RayTracing/CMakeLists.txt

@@ -39,6 +39,7 @@ add_executable(RayTracing
 )
 
 set_target_properties(RayTracing PROPERTIES FOLDER "Samples")
+target_compile_definitions(RayTracing PUBLIC VULKAN_HPP_DISPATCH_LOADER_DYNAMIC=1)
 target_include_directories(RayTracing PUBLIC
   ${CMAKE_SOURCE_DIR}/glslang
   ${CMAKE_SOURCE_DIR}/glfw/include
@@ -51,5 +52,4 @@ target_include_directories(RayTracing PUBLIC
 target_link_libraries(RayTracing PUBLIC glslang SPIRV
   legacy_stdio_definitions.lib
   ${CMAKE_SOURCE_DIR}/builds/VS2017_64/glfw/src/Debug/glfw3.lib
-  "${Vulkan_LIBRARIES}"
   )

samples/RayTracing/RayTracing.cpp

@@ -1063,7 +1063,7 @@ int main(int /*argc*/, char** /*argv*/)
     // Cleanup
     device->waitIdle();
     swapChainData.swapChain.reset();    // need to reset swapChain before destroying the surface !
-    vkDestroySurfaceKHR(*instance, surface, nullptr);
+    VULKAN_HPP_DEFAULT_DISPATCHER.vkDestroySurfaceKHR(*instance, surface, nullptr);
     glfwDestroyWindow(window);
     glfwTerminate();
   }