diff -r 6f7fe14782c2 -r 907a634e5c02 src/shapes.cc
--- a/src/shapes.cc	Sun Apr 27 09:44:49 2008 +0200
+++ b/src/shapes.cc	Sun Apr 27 14:19:37 2008 +0200
@@ -348,6 +348,54 @@
 #endif
 }
 
+#ifdef TRI_BARI_PRE
+__m128 Triangle::intersect_packet(const RayPacket &rays, __m128 &dists)
+{
+	static const int modulo3[5] = {0,1,2,0,1};
+	register const int u = modulo3[k+1];
+	register const int v = modulo3[k+2];
+	__m128 mask;
+
+	const __m128 t = _mm_div_ps(
+		_mm_sub_ps(_mm_sub_ps(
+		_mm_sub_ps(_mm_set_ps1(nd), rays.o.ma[k]),
+		_mm_mul_ps(_mm_set_ps1(nu), rays.o.ma[u])
+		), _mm_mul_ps(_mm_set_ps1(nv), rays.o.ma[v])),
+		_mm_add_ps(rays.dir.ma[k],
+		_mm_add_ps(_mm_mul_ps(_mm_set_ps1(nu), rays.dir.ma[u]),
+		_mm_mul_ps(_mm_set_ps1(nv), rays.dir.ma[v])))
+		);
+
+	mask = _mm_and_ps(_mm_cmplt_ps(t, dists), _mm_cmpge_ps(t, mEps));
+	if (!_mm_movemask_ps(mask))
+		return mask;
+
+	const __m128 hu = _mm_sub_ps(_mm_add_ps(rays.o.ma[u],
+		_mm_mul_ps(t, rays.dir.ma[u])), _mm_set_ps1(A->P[u]));
+	const __m128 hv = _mm_sub_ps(_mm_add_ps(rays.o.ma[v],
+		_mm_mul_ps(t, rays.dir.ma[v])), _mm_set_ps1(A->P[v]));
+	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));
+	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)));
+	if (!_mm_movemask_ps(mask))
+		return mask;
+
+	for (int i = 0; i < 4; i++)
+		if ((_mm_movemask_ps(mask)>>i)&1)
+			((float*)&dists)[i] = ((float*)&t)[i];
+	return mask;
+}
+#endif
+
 bool Triangle::intersect_bbox(const BBox &bbox) const
 {
 	const Vector3 boxcenter = (bbox.L+bbox.H)*0.5;