Cleanup: spelling in comments

2 files changed, 4 insertions, 4 deletions

diff --git a/intern/cycles/bvh/bvh_embree.cpp b/intern/cycles/bvh/bvh_embree.cpp
index 20430cb164c..9250af419cb 100644
--- a/intern/cycles/bvh/bvh_embree.cpp
+++ b/intern/cycles/bvh/bvh_embree.cpp
@@ -249,7 +249,7 @@ static void rtc_filter_func_thick_curve(const RTCFilterFunctionNArguments *args)
   const RTCRay *ray = (RTCRay *)args->ray;
   RTCHit *hit = (RTCHit *)args->hit;
 
-  /* Always ignore backfacing intersections. */
+  /* Always ignore back-facing intersections. */
   if (dot(make_float3(ray->dir_x, ray->dir_y, ray->dir_z),
           make_float3(hit->Ng_x, hit->Ng_y, hit->Ng_z)) > 0.0f) {
     *args->valid = 0;
@@ -262,7 +262,7 @@ static void rtc_filter_occluded_func_thick_curve(const RTCFilterFunctionNArgumen
   const RTCRay *ray = (RTCRay *)args->ray;
   RTCHit *hit = (RTCHit *)args->hit;
 
-  /* Always ignore backfacing intersections. */
+  /* Always ignore back-facing intersections. */
   if (dot(make_float3(ray->dir_x, ray->dir_y, ray->dir_z),
           make_float3(hit->Ng_x, hit->Ng_y, hit->Ng_z)) > 0.0f) {
     *args->valid = 0;
diff --git a/intern/cycles/render/session.cpp b/intern/cycles/render/session.cpp
index 8d2d950f661..a18c61599c2 100644
--- a/intern/cycles/render/session.cpp
+++ b/intern/cycles/render/session.cpp
@@ -157,7 +157,7 @@ void Session::run_main_render_loop()
       continue;
     }
 
-    /* Stop rendering if error happenned during scene update or other step of preparing scene
+    /* Stop rendering if error happened during scene update or other step of preparing scene
      * for render. */
     if (device->have_error()) {
       progress.set_error(device->error_message());
@@ -179,7 +179,7 @@ void Session::run_main_render_loop()
       /* update status and timing */
       update_status_time();
 
-      /* Stop rendering if error happenned during path tracing. */
+      /* Stop rendering if error happened during path tracing. */
       if (device->have_error()) {
         progress.set_error(device->error_message());
         break;