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-rw-r--r--src/modules/ray/ray_euler.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/modules/ray/ray_euler.c b/src/modules/ray/ray_euler.c
index 8709fa3..f143e25 100644
--- a/src/modules/ray/ray_euler.c
+++ b/src/modules/ray/ray_euler.c
@@ -5,7 +5,7 @@
#include "ray_euler.h"
/* produce orthonormal basis vectors from euler angles, rotated in the specified order */
-void ray_euler_basis(ray_euler_t *e, ray_3f_t *forward, ray_3f_t *up, ray_3f_t *left)
+void ray_euler_basis(const ray_euler_t *e, ray_3f_t *forward, ray_3f_t *up, ray_3f_t *left)
{
float cos_yaw = cosf(e->yaw);
float sin_yaw = sinf(e->yaw);
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