star-3d

commit bb74ffdcbf65d4670b2a4cdc05731417157151db
parent fa654009ccf2a4765e1bee3d550cb13dd404c108
Author: Vincent Forest <vincent.forest@meso-star.com>
Date:   Thu, 10 Jan 2019 14:36:00 +0100

Flip mesh normals of Embree3 to match S3D convention

Diffstat:
M
src/s3d_scene_view.c
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/s3d_scene_view.c b/src/s3d_scene_view.c
@@ -220,6 +220,11 @@ hit_setup
      * the hit for the first and second triangle vertices */
     hit->uv[1] = hit->uv[0];
     hit->uv[0] = w;
+
+    /* In Embree3 the normal orientation is flipped wrt to Star-3D convention */
+    #if RTC_VERSION_MAJOR >= 3
+    f3_minus(hit->normal, hit->normal);
+    #endif
   }
 
   /* Flip geometric normal with respect to the flip surface flag */