star-3d

commit 6e6566d07b8a7bbdad0b428142e796d434aeb485
parent 3c39f86c8874711f2b0ecf74a72620b42122e9c3
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Fri, 17 Mar 2023 15:47:07 +0100

Use Embree 4 rather than Embree 3 as a RT backend

Fix a minor API flaw introduced by Embree 4

Diffstat:
M
cmake/CMakeLists.txt
 | 
2
+-
M
src/s3d_backend.h
 | 
2
+-
M
src/s3d_scene_view_trace_ray.c
 | 
9
++++++---

3 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
@@ -39,7 +39,7 @@ option(NO_TEST "Disable the test" OFF)
 ################################################################################
 # Check dependencies
 ################################################################################
-find_package(Embree 3.6 REQUIRED)
+find_package(Embree 4.0 REQUIRED)
 find_package(RCMake 0.2.2 REQUIRED)
 find_package(RSys 0.6 REQUIRED)
 
diff --git a/src/s3d_backend.h b/src/s3d_backend.h
@@ -41,7 +41,7 @@
   #pragma warning(disable: 4324)
 #endif
 
-#include <embree3/rtcore.h>
+#include <embree4/rtcore.h>
 
 #ifdef COMPILER_CL
   #pragma warning(pop)
diff --git a/src/s3d_scene_view_trace_ray.c b/src/s3d_scene_view_trace_ray.c
@@ -43,7 +43,7 @@
 #include <limits.h>
 
 struct intersect_context {
-  struct RTCIntersectContext rtc;
+  struct RTCRayQueryContext rtc;
   struct s3d_scene_view* scnview;
   void* data; /* Per ray user defined data */
   float ws_org[3]; /* World space ray origin */
@@ -161,6 +161,7 @@ s3d_scene_view_trace_ray
    struct s3d_hit* hit)
 {
   struct RTCRayHit ray_hit;
+  struct RTCIntersectArguments intersect_args;
   struct intersect_context intersect_ctx;
   size_t i;
 
@@ -210,7 +211,9 @@ s3d_scene_view_trace_ray
   }
 
   /* Initialise the intersect context */
-  rtcInitIntersectContext(&intersect_ctx.rtc);
+  rtcInitIntersectArguments(&intersect_args);
+  intersect_args.context = &intersect_ctx.rtc;
+  rtcInitRayQueryContext(&intersect_ctx.rtc);
   intersect_ctx.ws_org[0] = org[0];
   intersect_ctx.ws_org[1] = org[1];
   intersect_ctx.ws_org[2] = org[2];
@@ -223,7 +226,7 @@ s3d_scene_view_trace_ray
   intersect_ctx.data = ray_data;
 
   /* Here we go! */
-  rtcIntersect1(scnview->rtc_scn, &intersect_ctx.rtc, &ray_hit);
+  rtcIntersect1(scnview->rtc_scn, &ray_hit, &intersect_args);
 
   hit_setup(scnview, &ray_hit, hit);
   return RES_OK;