From 0b83c3ad8506d2b04956e83e7ac9220abfc4a921 Mon Sep 17 00:00:00 2001
From: Fabio Pellacini <fabio.pellacini@gmail.com>
Date: Tue, 1 Mar 2022 12:05:42 +0100
Subject: [PATCH] Fix build for Cutrace (#1340)

---
 CMakePresets.json           | 56 ++++++++++++++++++++++++++++++++++---
 libs/yocto/yocto_cutrace.cu | 24 ++++++----------
 2 files changed, 61 insertions(+), 19 deletions(-)

diff --git a/CMakePresets.json b/CMakePresets.json
index e386f5c91..edb2d6a2c 100644
--- a/CMakePresets.json
+++ b/CMakePresets.json
@@ -16,7 +16,8 @@
         "YOCTO_APPS": "ON",
         "YOCTO_EMBREE": "ON",
         "YOCTO_DENOISE": "ON",
-        "YOCTO_OPENGL": "ON"
+        "YOCTO_OPENGL": "ON",
+        "YOCTO_CUDA": "OFF"
       },
       "architecture": {
         "value": "x64",
@@ -33,7 +34,8 @@
         "YOCTO_APPS": "ON",
         "YOCTO_EMBREE": "ON",
         "YOCTO_DENOISE": "ON",
-        "YOCTO_OPENGL": "ON"
+        "YOCTO_OPENGL": "ON",
+        "YOCTO_CUDA": "OFF"
       },
       "architecture": {
         "value": "x64",
@@ -50,7 +52,8 @@
         "YOCTO_APPS": "ON",
         "YOCTO_EMBREE": "OFF",
         "YOCTO_DENOISE": "OFF",
-        "YOCTO_OPENGL": "ON"
+        "YOCTO_OPENGL": "ON",
+        "YOCTO_CUDA": "OFF"
       },
       "architecture": {
         "value": "x64",
@@ -67,7 +70,44 @@
         "YOCTO_APPS": "ON",
         "YOCTO_EMBREE": "OFF",
         "YOCTO_DENOISE": "OFF",
-        "YOCTO_OPENGL": "ON"
+        "YOCTO_OPENGL": "ON",
+        "YOCTO_CUDA": "OFF"
+      },
+      "architecture": {
+        "value": "x64",
+        "strategy": "external"
+      }
+    },
+    {
+      "name": "release-cuda",
+      "description": "Release build",
+      "generator": "Ninja",
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "RelWithDebInfo",
+        "YOCTO_APPS": "ON",
+        "YOCTO_EMBREE": "OFF",
+        "YOCTO_DENOISE": "OFF",
+        "YOCTO_OPENGL": "ON",
+        "YOCTO_CUDA": "ON"
+      },
+      "architecture": {
+        "value": "x64",
+        "strategy": "external"
+      }
+    },
+    {
+      "name": "debug-cuda",
+      "description": "Debug build",
+      "generator": "Ninja",
+      "binaryDir": "${sourceDir}/build/${presetName}",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Debug",
+        "YOCTO_APPS": "ON",
+        "YOCTO_EMBREE": "OFF",
+        "YOCTO_DENOISE": "OFF",
+        "YOCTO_OPENGL": "ON",
+        "YOCTO_CUDA": "ON"
       },
       "architecture": {
         "value": "x64",
@@ -91,6 +131,14 @@
     {
       "name": "debug-nodep",
       "configurePreset": "debug-nodep"
+    },
+    {
+      "name": "release-cuda",
+      "configurePreset": "release-cuda"
+    },
+    {
+      "name": "debug-cuda",
+      "configurePreset": "debug-cuda"
     }
   ]
 }
diff --git a/libs/yocto/yocto_cutrace.cu b/libs/yocto/yocto_cutrace.cu
index 7a304b332..e0da43785 100644
--- a/libs/yocto/yocto_cutrace.cu
+++ b/libs/yocto/yocto_cutrace.cu
@@ -1,18 +1,12 @@
-// ======================================================================== //
-// Copyright 2018-2019 Ingo Wald                                            //
-//                                                                          //
-// 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.                                           //
-// ======================================================================== //
+//
+// # Yocto/CuTrace: Path tracing on Cuda/Optix
+//
+// Yocto/CuTrace is a simple path tracer written on the Yocto/Scene model.
+// Yocto/CuTrace is implemented in `yocto_cutrace.h`, `yocto_cutrace.cpp`,
+// and `yocto_cutrace.cu`.
+//
+// THIS IS AN EXPERIMENTAL LIBRARY THAT IS NOT READY FOR PRIME TIME
+//
 
 #include <optix_device.h>
 // do not flip it