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-rw-r--r--src/LinearMath/btVector3.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/LinearMath/btVector3.h b/src/LinearMath/btVector3.h
index 61fd8d1e4..d65ed9808 100644
--- a/src/LinearMath/btVector3.h
+++ b/src/LinearMath/btVector3.h
@@ -36,7 +36,7 @@ subject to the following restrictions:
#pragma warning(disable : 4556) // value of intrinsic immediate argument '4294967239' is out of range '0 - 255'
#endif
-#define BT_SHUFFLE(x, y, z, w) ((w) << 6 | (z) << 4 | (y) << 2 | (x))
+#define BT_SHUFFLE(x, y, z, w) (((w) << 6 | (z) << 4 | (y) << 2 | (x)) & 0xff)
//#define bt_pshufd_ps( _a, _mask ) (__m128) _mm_shuffle_epi32((__m128i)(_a), (_mask) )
#define bt_pshufd_ps(_a, _mask) _mm_shuffle_ps((_a), (_a), (_mask))
#define bt_splat3_ps(_a, _i) bt_pshufd_ps((_a), BT_SHUFFLE(_i, _i, _i, 3))