1 files changed, 3 insertions, 0 deletions
diff --git a/libdimension/dimension/object.h b/libdimension/dimension/object.h
index 0f53406..0393d94 100644
--- a/libdimension/dimension/object.h
+++ b/libdimension/dimension/object.h
@@ -31,6 +31,9 @@ typedef struct {
   dmnsn_line ray;
   double t;
 
+  /* The surface normal at the intersection point */
+  dmnsn_vector normal;
+
   /* The texture at the intersection point */
   const dmnsn_texture *texture;
 } dmnsn_intersection;