1 files changed, 3 insertions, 1 deletions
diff --git a/3dmath.c b/3dmath.c
index 5b876f2..2693c32 100644
--- a/3dmath.c
+++ b/3dmath.c
@@ -19,7 +19,9 @@ normalize(float x[3]) {
 }
 
 float
-sphere_intersect(float y[3], float r[3], const float s[3], const float d[3], const float c[3], float R) {
+sphere_intersect(float* restrict y, float* restrict r,
+                 const float* restrict s, const float* restrict d,
+                 const float* restrict c, float R) {
     int i;
     float D, n[3], t, v[3];