fix for regression in solidify modifier copying loop customdata to rim faces (UV's and vertex colors).

Own fault when fixing rim face flipping r46924

1 files changed, 5 insertions, 5 deletions

diff --git a/source/blender/modifiers/intern/MOD_solidify.c b/source/blender/modifiers/intern/MOD_solidify.c
index 035dda0c95c..1df7d535c35 100644
--- a/source/blender/modifiers/intern/MOD_solidify.c
+++ b/source/blender/modifiers/intern/MOD_solidify.c
@@ -635,15 +635,15 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
 			/* notice we use 'mp->totloop' which is later overwritten,
 			 * we could lookup the original face but theres no point since this is a copy
 			 * and will have the same value, just take care when changing order of assignment */
-			k1 = mpoly[fidx].loopstart + ((edge_order[eidx] + 1) % mp->totloop);
+			k1 = mpoly[fidx].loopstart + (((edge_order[eidx] - 1) + mp->totloop) % mp->totloop);  /* prev loop */
 			k2 = mpoly[fidx].loopstart +  (edge_order[eidx]);
 
 			mp->totloop = 4;
 
-			CustomData_copy_data(&dm->loopData, &result->loopData, k1, numLoops * 2 + j + 0, 1);
-			CustomData_copy_data(&dm->loopData, &result->loopData, k2, numLoops * 2 + j + 1, 1);
-			CustomData_copy_data(&dm->loopData, &result->loopData, k2, numLoops * 2 + j + 2, 1);
-			CustomData_copy_data(&dm->loopData, &result->loopData, k1, numLoops * 2 + j + 3, 1);
+			CustomData_copy_data(&dm->loopData, &result->loopData, k2, numLoops * 2 + j + 0, 1);
+			CustomData_copy_data(&dm->loopData, &result->loopData, k1, numLoops * 2 + j + 1, 1);
+			CustomData_copy_data(&dm->loopData, &result->loopData, k1, numLoops * 2 + j + 2, 1);
+			CustomData_copy_data(&dm->loopData, &result->loopData, k2, numLoops * 2 + j + 3, 1);
 
 			if (flip == FALSE) {
 				ml[j].v = ed->v1;