diff --git a/source/blender/modifiers/intern/MOD_ocean.c b/source/blender/modifiers/intern/MOD_ocean.c
index 81366fba501..0b69fe3ba99 100644
--- a/source/blender/modifiers/intern/MOD_ocean.c
+++ b/source/blender/modifiers/intern/MOD_ocean.c
@@ -268,9 +268,8 @@ static DerivedMesh *generate_ocean_geometry(OceanModifierData *omd)
 {
 	DerivedMesh *result;
 
-	MVert *mv;
-	MFace *mf;
-	MTFace *tf;
+	MVert *mverts;
+	MFace *mfaces;
 	int *origindex;
 
 	int cdlayer;
@@ -298,8 +297,8 @@ static DerivedMesh *generate_ocean_geometry(OceanModifierData *omd)
 
 	result = CDDM_new(num_verts, num_edges, num_faces);
 
-	mv = CDDM_get_verts(result);
-	mf = CDDM_get_faces(result);
+	mverts = CDDM_get_verts(result);
+	mfaces = CDDM_get_faces(result);
 	origindex= result->getFaceDataArray(result, CD_ORIGINDEX);
 
 	/* create vertices */
@@ -307,9 +306,10 @@ static DerivedMesh *generate_ocean_geometry(OceanModifierData *omd)
 	for (y=0; y < res_y+1; y++) {
 		for (x=0; x < res_x+1; x++) {
 			const int i = y*(res_x+1) + x;
-			mv[i].co[0] = ox + (x * sx);
-			mv[i].co[1] = oy + (y * sy);
-			mv[i].co[2] = 0;
+			float *co= mverts[i].co;
+			co[0] = ox + (x * sx);
+			co[1] = oy + (y * sy);
+			co[2] = 0;
 		}
 	}
 
@@ -319,12 +319,13 @@ static DerivedMesh *generate_ocean_geometry(OceanModifierData *omd)
 		for (x=0; x < res_x; x++) {
 			const int fi = y*res_x + x;
 			const int vi = y*(res_x+1) + x;
-			mf[fi].v1 = vi;
-			mf[fi].v2 = vi + 1;
-			mf[fi].v3 = vi + 1 + res_x+1;
-			mf[fi].v4 = vi + res_x+1;
+			MFace *mf= &mfaces[fi];
+			mf->v1 = vi;
+			mf->v2 = vi + 1;
+			mf->v3 = vi + 1 + res_x+1;
+			mf->v4 = vi + res_x+1;
 
-			mf[fi].flag |= ME_SMOOTH;
+			mf->flag |= ME_SMOOTH;
 
 			/* generated geometry does not map to original faces */
 			origindex[fi] = ORIGINDEX_NONE;
@@ -335,28 +336,27 @@ static DerivedMesh *generate_ocean_geometry(OceanModifierData *omd)
 
 	/* add uvs */
 	cdlayer= CustomData_number_of_layers(&result->faceData, CD_MTFACE);
-	if(cdlayer >= MAX_MTFACE)
-		return result;
-	CustomData_add_layer(&result->faceData, CD_MTFACE, CD_CALLOC, NULL, num_faces);
-	tf = CustomData_get_layer(&result->faceData, CD_MTFACE);
+	if(cdlayer < MAX_MTFACE) {
+		MTFace *tfaces= CustomData_add_layer(&result->faceData, CD_MTFACE, CD_CALLOC, NULL, num_faces);
 
-	ix = 1.0 / rx;
-	iy = 1.0 / ry;
-	#pragma omp parallel for private(x, y) if (rx > OMP_MIN_RES)
-	for (y=0; y < res_y; y++) {
-		for (x=0; x < res_x; x++) {
-			const int i = y*res_x + x;
-			tf[i].uv[0][0] = x * ix;
-			tf[i].uv[0][1] = y * iy;
+		ix = 1.0 / rx;
+		iy = 1.0 / ry;
+		#pragma omp parallel for private(x, y) if (rx > OMP_MIN_RES)
+		for (y=0; y < res_y; y++) {
+			for (x=0; x < res_x; x++) {
+				const int i = y*res_x + x;
+				tfaces[i].uv[0][0] = x * ix;
+				tfaces[i].uv[0][1] = y * iy;
 
-			tf[i].uv[1][0] = (x+1) * ix;
-			tf[i].uv[1][1] = y * iy;
+				tfaces[i].uv[1][0] = (x+1) * ix;
+				tfaces[i].uv[1][1] = y * iy;
 
-			tf[i].uv[2][0] = (x+1) * ix;
-			tf[i].uv[2][1] = (y+1) * iy;
+				tfaces[i].uv[2][0] = (x+1) * ix;
+				tfaces[i].uv[2][1] = (y+1) * iy;
 
-			tf[i].uv[3][0] = x * ix;
-			tf[i].uv[3][1] = (y+1) * iy;
+				tfaces[i].uv[3][0] = x * ix;
+				tfaces[i].uv[3][1] = (y+1) * iy;
+			}
 		}
 	}
 
@@ -435,9 +435,7 @@ static DerivedMesh *doOcean(ModifierData *md, Object *ob,
 			MCol *mcols, *mc;
 			float foam;
 
-			CustomData_add_layer_named(&dm->faceData, CD_MCOL, CD_CALLOC, NULL, num_faces, omd->foamlayername);
-
-			mcols = dm->getFaceDataArray(dm, CD_MCOL);
+			mcols = CustomData_add_layer_named(&dm->faceData, CD_MCOL, CD_CALLOC, NULL, num_faces, omd->foamlayername);
 
 			for (i = 0, mf= mfaces; i < num_faces; i++, mf++) {
 				j= mf->v4 ? 3 : 2;