diff --git a/Engine/CMakeLists.txt b/Engine/CMakeLists.txt
index 1166d92..108c165 100644
--- a/Engine/CMakeLists.txt
+++ b/Engine/CMakeLists.txt
@@ -40,6 +40,9 @@ set(TRACY_DIR ${CMAKE_SOURCE_DIR}/Lib/tracy)
 target_include_directories(Engine PUBLIC ${TRACY_DIR}/public)
 target_sources(Engine PRIVATE ${TRACY_DIR}/public/TracyClient.cpp)
 target_compile_definitions(Engine PUBLIC TRACY_ENABLE)
+# 按需剖析：GPU context 宣告（GpuNewContext）与连接绑定——GUI 永远晚于
+# 程序启动连接，没有这个宏宣告消息被丢弃，GPU 时间线永远空白
+target_compile_definitions(Engine PUBLIC TRACY_ON_DEMAND)
 
 find_package(Threads REQUIRED)
 target_link_libraries(Engine PUBLIC Threads::Threads)