Add swaying effect to the grass.
diff --git a/libs/rs/Android.mk b/libs/rs/Android.mk
index 6b11a25..375cf6c 100644
--- a/libs/rs/Android.mk
+++ b/libs/rs/Android.mk
@@ -90,6 +90,7 @@
 	rsObjectBase.cpp \
 	rsMatrix.cpp \
         rsMesh.cpp \
+	rsNoise.cpp \
 	rsProgram.cpp \
 	rsProgramFragment.cpp \
 	rsProgramFragmentStore.cpp \