Add NanoVDB volume test scaffolding

tests/Resources/Volume/CMakeLists.txt

@@ -13,6 +13,7 @@ if(MSVC)
     set_target_properties(volume_tests PROPERTIES
         LINK_FLAGS "/NODEFAULTLIB:libcpmt.lib /NODEFAULTLIB:libcmt.lib"
     )
+    target_compile_options(volume_tests PRIVATE /bigobj /utf-8)
 endif()
 
 target_link_libraries(volume_tests
@@ -24,11 +25,19 @@ target_link_libraries(volume_tests
 
 target_include_directories(volume_tests PRIVATE
     ${CMAKE_SOURCE_DIR}/engine/include
-    ${CMAKE_SOURCE_DIR}/tests/Fixtures
 )
 
+if(XCENGINE_HAS_NANOVDB)
+    target_include_directories(volume_tests PRIVATE
+        ${XCENGINE_NANOVDB_INCLUDE_DIR}
+    )
+    target_compile_definitions(volume_tests PRIVATE
+        XCENGINE_HAS_NANOVDB=1
+    )
+endif()
+
 target_compile_definitions(volume_tests PRIVATE
-    XCENGINE_TEST_FIXTURES_DIR="${CMAKE_SOURCE_DIR}/tests/Fixtures"
+    XCENGINE_TEST_CLOUD_NVDB_PATH="${CMAKE_SOURCE_DIR}/mvs/VolumeRenderer/Res/NanoVDB/cloud.nvdb"
 )
 
 include(GoogleTest)