removed wait_idle in renderer

src/mirrage/graphic/src/context.cpp

@@ -515,7 +515,7 @@ namespace mirrage::graphic {
 				sc_info.setImageUsage(vk::ImageUsageFlagBits::eColorAttachment
 				                      | vk::ImageUsageFlagBits::eTransferDst);
 				sc_info.setImageArrayLayers(1);
-				sc_info.setMinImageCount(std::max(3u, capabilities.minImageCount));
+				sc_info.setMinImageCount(std::max(2u, capabilities.minImageCount));
 				if(capabilities.maxImageCount > 0 && capabilities.maxImageCount < sc_info.minImageCount) {
 					sc_info.setMinImageCount(capabilities.maxImageCount);
 				}

src/mirrage/renderer/src/pass/deferred_lighting_subpass.cpp

@@ -216,8 +216,6 @@ namespace mirrage::renderer {
 			return;
 		}
 
-		_renderer.device().wait_idle();
-
 		// point light
 		if(_point_light_mesh.ready()) {
 			auto first_point_light = true;