Raytracing execution reordering

antora/modules/ROOT/nav.adoc

@@ -1,6 +1,6 @@
 ////
-- Copyright (c) 2023-2025, Holochip Inc
-- Copyright (c) 2023-2025, Sascha Willems
+- Copyright (c) 2023-2026, Holochip Inc
+- Copyright (c) 2023-2026, Sascha Willems
 - Copyright (c) 2025, Arm Limited and Contributors
 -
 - SPDX-License-Identifier: Apache-2.0
@@ -84,6 +84,7 @@
 *** xref:samples/extensions/hpp_push_descriptors/README.adoc[Push descriptors (Vulkan-Hpp)]
 ** xref:samples/extensions/ray_tracing_basic/README.adoc[Raytracing basic]
 ** xref:samples/extensions/ray_tracing_extended/README.adoc[Raytracing extended]
+** xref:samples/extensions/ray_tracing_invocation_reorder/README.adoc[Ray tracing invocation reorder (SER)]
 ** xref:samples/extensions/ray_queries/README.adoc[Ray queries]
 ** xref:samples/extensions/ray_tracing_reflection/README.adoc[Ray tracing reflection]
 ** xref:samples/extensions/ray_tracing_position_fetch/README.adoc[Ray tracing position fetch]

framework/vulkan_type_mapping.h

@@ -1,5 +1,5 @@
 /* Copyright (c) 2025, Arm Limited and Contributors
- * Copyright (c) 2024-2025, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2024-2026, NVIDIA CORPORATION. All rights reserved.
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -243,6 +243,20 @@ struct HPPType<VkPhysicalDeviceRayTracingPipelineFeaturesKHR>
 	using Type = vk::PhysicalDeviceRayTracingPipelineFeaturesKHR;
 };
 
+#ifdef VK_EXT_ray_tracing_invocation_reorder
+template <>
+struct HPPType<VkPhysicalDeviceRayTracingInvocationReorderFeaturesEXT>
+{
+	using Type = vk::PhysicalDeviceRayTracingInvocationReorderFeaturesEXT;
+};
+#endif
+
+template <>
+struct HPPType<VkPhysicalDeviceRayTracingInvocationReorderFeaturesNV>
+{
+	using Type = vk::PhysicalDeviceRayTracingInvocationReorderFeaturesNV;
+};
+
 template <>
 struct HPPType<VkPhysicalDeviceRayTracingPositionFetchFeaturesKHR>
 {

samples/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (c) 2019-2025, Arm Limited and Contributors
+# Copyright (c) 2019-2026, Arm Limited and Contributors
 #
 # SPDX-License-Identifier: Apache-2.0
 #
@@ -75,6 +75,7 @@ set(ORDER_LIST
     "ray_tracing_basic"
     "ray_tracing_extended"
     "ray_tracing_reflection"
+    "ray_tracing_invocation_reorder"
     "timeline_semaphore"
     "shader_object"
     "shader_debugprintf"

samples/extensions/README.adoc

@@ -1,6 +1,6 @@
 ////
 - Copyright (c) 2025, Arm Limited and Contributors
-- Copyright (c) 2021-2025, The Khronos Group
+- Copyright (c) 2021-2026, The Khronos Group
 -
 - SPDX-License-Identifier: Apache-2.0
 -
@@ -312,3 +312,9 @@ Demonstrate how to build data graph pipelines and execute neural networks:
 
 * xref:./{extension_samplespath}tensor_and_data_graph/simple_tensor_and_data_graph/README.adoc[simple_tensor_and_data_graph]
 - Explains how to set up and execute a simple neural network using a data graph pipeline.
+
+=== xref:./{extension_samplespath}ray_tracing_invocation_reorder/README.adoc[Ray Tracing Invocation Reorder]
+
+*Extensions:* https://registry.khronos.org/vulkan/specs/1.3-extensions/man/html/VK_EXT_ray_tracing_invocation_reorder.html[`VK_EXT_ray_tracing_invocation_reorder`]
+
+Demonstrate how to optimize ray tracing pipelines by reordering the invocation order.

samples/extensions/ray_tracing_invocation_reorder/CMakeLists.txt

@@ -0,0 +1,40 @@
+# Copyright (c) 2025-2026, Holochip Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed under the Apache License, Version 2.0 the "License";
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+get_filename_component(FOLDER_NAME ${CMAKE_CURRENT_LIST_DIR} NAME)
+get_filename_component(PARENT_DIR ${CMAKE_CURRENT_LIST_DIR} PATH)
+get_filename_component(CATEGORY_NAME ${PARENT_DIR} NAME)
+
+add_sample_with_tags(
+    ID ${FOLDER_NAME}
+    CATEGORY ${CATEGORY_NAME}
+    AUTHOR "Holochip Inc."
+    NAME "Ray tracing invocation reorder"
+    DESCRIPTION "Demonstrates Shader Execution Reordering (SER) using VK_EXT_ray_tracing_invocation_reorder to reduce divergence"
+        SHADER_FILES_GLSL
+        # Note: We do not compile GLSL here because glslc may lack GL_EXT_shader_invocation_reorder (current public SDK doesn't support it).
+#        "ray_tracing_invocation_reorder/glsl/raygen.rgen"
+#        "ray_tracing_invocation_reorder/glsl//miss.rmiss"
+#        "ray_tracing_invocation_reorder/glsl//closesthit_flame.rchit"
+#        "ray_tracing_invocation_reorder/glsl//closesthit_normal.rchit"
+#        "ray_tracing_invocation_reorder/glsl//closesthit_refraction.rchit"
+    SHADER_FILES_SLANG
+        "ray_tracing_invocation_reorder/slang/raygen.rgen.slang"
+        "ray_tracing_invocation_reorder/slang/miss.rmiss.slang"
+        "ray_tracing_invocation_reorder/slang/closesthit_normal.rchit.slang"
+        "ray_tracing_invocation_reorder/slang/closesthit_refraction.rchit.slang"
+        "ray_tracing_invocation_reorder/slang/closesthit_flame.rchit.slang"
+    )