1 files changed, 1 insertions, 1 deletions

diff --git a/include/math/spatial3.h b/include/math/spatial3.h
index 8de38bf..9065972 100644
--- a/include/math/spatial3.h
+++ b/include/math/spatial3.h
@@ -118,7 +118,7 @@ static inline void spatial3_set_transform(Spatial3* spatial, mat4 transform) {
 static inline void spatial3_set_forward(Spatial3* spatial, vec3 forward) {
   spatial->f = vec3_normalize(forward);
   // Use aux vector to define right vector orthogonal to forward.
-  if (vec3_eq(vec3_abs(spatial->f), up3())) {
+  if (vec3_eq(vec3_abs(spatial->f), up3(), 1e-9)) {
     spatial->r = vec3_normalize(vec3_cross(spatial->f, forward3()));
   } else {
     spatial->r = vec3_normalize(vec3_cross(spatial->f, up3()));