diff --git a/projects/rtx/.gitignore b/projects/rtx/.gitignore
index b0d802667a184267e6ee764264e976dfead8e9dd..8b485be2120c195aef2476fccfbc67428c3d3180 100644
--- a/projects/rtx/.gitignore
+++ b/projects/rtx/.gitignore
@@ -1 +1 @@
-first_scene
+rtx
diff --git a/projects/voxelization/src/main.cpp b/projects/voxelization/src/main.cpp
index fe962ff3036c12734ab6d82e034499ab89312b37..68e3679cc7160cf7b53dccc6c05e004967494d1f 100644
--- a/projects/voxelization/src/main.cpp
+++ b/projects/voxelization/src/main.cpp
@@ -81,8 +81,20 @@ int main(int argc, const char** argv) {
 	
 	vkcv::Features features;
 	features.requireExtension(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
-	features.requireExtension(VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME);
-	features.requireExtension(VK_KHR_16BIT_STORAGE_EXTENSION_NAME);
+	
+	features.tryExtensionFeature<vk::PhysicalDevice16BitStorageFeatures>(
+			VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME,
+			[](vk::PhysicalDevice16BitStorageFeatures& features) {
+				features.setStorageBuffer16BitAccess(true);
+			}
+	);
+	
+	features.tryExtensionFeature<vk::PhysicalDeviceShaderFloat16Int8Features>(
+			VK_KHR_16BIT_STORAGE_EXTENSION_NAME,
+			[](vk::PhysicalDeviceShaderFloat16Int8Features& features) {
+				features.setShaderFloat16(true);
+			}
+	);
 	
 	vkcv::Core core = vkcv::Core::create(
 		window,
diff --git a/src/vkcv/Context.cpp b/src/vkcv/Context.cpp
index 179ee7409304b213b2b1f01aac870a44146a87e6..78230aea028361f47238ccaa6e55778522194d12 100644
--- a/src/vkcv/Context.cpp
+++ b/src/vkcv/Context.cpp
@@ -260,21 +260,6 @@ namespace vkcv
 		vk::PhysicalDevice physicalDevice = pickPhysicalDevice(instance);
 		
 		FeatureManager featureManager (physicalDevice);
-
-		// TODO, FIXME: nach Tobi duerfen wir das hier auskommentieren. Es wird ein Fix benoetigt!
-//		if (featureManager.useExtension(VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME, false)) {
-//			featureManager.useFeatures<vk::PhysicalDeviceShaderFloat16Int8Features>(
-//					[](vk::PhysicalDeviceShaderFloat16Int8Features& features) {
-//				features.setShaderFloat16(true);
-//			}, false);
-//		}
-//
-//		if (featureManager.useExtension(VK_KHR_16BIT_STORAGE_EXTENSION_NAME, false)) {
-//			featureManager.useFeatures<vk::PhysicalDevice16BitStorageFeatures>(
-//					[](vk::PhysicalDevice16BitStorageFeatures& features) {
-//				features.setStorageBuffer16BitAccess(true);
-//			}, false);
-//		}
 		
 		featureManager.useFeatures([](vk::PhysicalDeviceFeatures& features) {
 			features.setFragmentStoresAndAtomics(true);