--- a/src/shapes.cc	Sun Apr 27 14:19:37 2008 +0200
+++ b/src/shapes.cc	Sun Apr 27 19:56:23 2008 +0200
@@ -377,15 +377,15 @@
 	const __m128 beta = _mm_add_ps(_mm_mul_ps(hv, _mm_set_ps1(bnu)),
 		_mm_mul_ps(hu, _mm_set_ps1(bnv)));
 
-	mask = _mm_and_ps(mask, _mm_cmpge_ps(beta, zeros));
+	mask = _mm_and_ps(mask, _mm_cmpge_ps(beta, mZero));
 	if (!_mm_movemask_ps(mask))
 		return mask;
 
 	const __m128 gamma = _mm_add_ps(_mm_mul_ps(hu, _mm_set_ps1(cnv)),
 		_mm_mul_ps(hv, _mm_set_ps1(cnu)));
 
-	mask = _mm_and_ps(mask, _mm_and_ps(_mm_cmpge_ps(gamma, zeros),
-		_mm_cmple_ps(_mm_add_ps(beta, gamma), ones)));
+	mask = _mm_and_ps(mask, _mm_and_ps(_mm_cmpge_ps(gamma, mZero),
+		_mm_cmple_ps(_mm_add_ps(beta, gamma), mOne)));
 	if (!_mm_movemask_ps(mask))
 		return mask;