Fix T55818: Dynamically modified influence vertex group not working in modifier stack.

Now that we are using meshes, we need to assign back potential new
vgroup cdlayer to mesh->dvert pointer...

3 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/modifiers/intern/MOD_weightvgedit.c b/source/blender/modifiers/intern/MOD_weightvgedit.c
index 356edcd7bec..74b1f600242 100644
--- a/source/blender/modifiers/intern/MOD_weightvgedit.c
+++ b/source/blender/modifiers/intern/MOD_weightvgedit.c
@@ -219,6 +219,7 @@ static Mesh *applyModifier(
 		}
 		return mesh;
 	}
+	result->dvert = dvert;
 
 	/* Get org weights, assuming 0.0 for vertices not in given vgroup. */
 	org_w = MEM_malloc_arrayN(numVerts, sizeof(float), "WeightVGEdit Modifier, org_w");
diff --git a/source/blender/modifiers/intern/MOD_weightvgmix.c b/source/blender/modifiers/intern/MOD_weightvgmix.c
index 3c740530258..379fbe7adaa 100644
--- a/source/blender/modifiers/intern/MOD_weightvgmix.c
+++ b/source/blender/modifiers/intern/MOD_weightvgmix.c
@@ -259,6 +259,7 @@ static Mesh *applyModifier(ModifierData *md, const ModifierEvalContext *ctx, Mes
 		}
 		return mesh;
 	}
+	result->dvert = dvert;
 
 	/* Find out which vertices to work on. */
 	tidx = MEM_malloc_arrayN(numVerts, sizeof(int), "WeightVGMix Modifier, tidx");
diff --git a/source/blender/modifiers/intern/MOD_weightvgproximity.c b/source/blender/modifiers/intern/MOD_weightvgproximity.c
index c485aa132d7..6aadd9f7bc2 100644
--- a/source/blender/modifiers/intern/MOD_weightvgproximity.c
+++ b/source/blender/modifiers/intern/MOD_weightvgproximity.c
@@ -438,6 +438,7 @@ static Mesh *applyModifier(ModifierData *md, const ModifierEvalContext *ctx, Mes
 		}
 		return mesh;
 	}
+	result->dvert = dvert;
 
 	/* Find out which vertices to work on (all vertices in vgroup), and get their relevant weight. */
 	tidx = MEM_malloc_arrayN(numVerts, sizeof(int), "WeightVGProximity Modifier, tidx");