Screenshot and stuff

Signed-off-by: Slendi <slendi@socopon.com>

src/Util.cpp

@@ -1,7 +1,18 @@
 #include "Util.h"
 
+#include <cstdlib>
 #include <span>
 
+namespace Lunar {
+
+auto tracy_runtime_enabled() -> bool
+{
+	static bool enabled = std::getenv("LUNAR_NO_TRACY") == nullptr;
+	return enabled;
+}
+
+} // namespace Lunar
+
 namespace vkutil {
 
 auto transition_image(vk::CommandBuffer cmd, vk::Image image,