diff --git a/examples/RegressionStateScenes.regression-tests b/examples/RegressionStateScenes.regression-tests
index 73362dd..55fa5be 100644
--- a/examples/RegressionStateScenes.regression-tests
+++ b/examples/RegressionStateScenes.regression-tests
@@ -10,3 +10,4 @@ BeatingCube_moving.scn 200 1e-4 1 1
 Cube_AdvCarvingTexcoords.scn 500 1e-4 1 1
 Cube_Carving.scn 500 1e-4 1 1
 Cube_CarvingWithPenetration.scn 500 1e-4 1 1
+TetrahedronBeamMultiMaterials.scn 500 1e-4 1 1
diff --git a/regression/references/TetrahedronBeamMultiMaterials.scn.reference b/regression/references/TetrahedronBeamMultiMaterials.scn.reference
new file mode 100644
index 0000000..e69de29
diff --git a/regression/references/TetrahedronBeamMultiMaterials.scn.reference_0_mechObj_mstate.txt.gz b/regression/references/TetrahedronBeamMultiMaterials.scn.reference_0_mechObj_mstate.txt.gz
new file mode 100644
index 0000000..4463bd7
Binary files /dev/null and b/regression/references/TetrahedronBeamMultiMaterials.scn.reference_0_mechObj_mstate.txt.gz differ