Commit: 69f2305415a224c277fe4fa9c81f846ba60cbb17
Author: Philipp Oeser
Date: Tue May 8 11:05:42 2018 +0200
Branches: master
https://developer.blender.org/rB69f2305415a224c277fe4fa9c81f846ba60cbb17
Fix T54992: Lattice modifier on another Lattice object does not take the
Influence vertexgroup into account
===================================================================
M source/blender/blenkernel/intern/lattice.c
===================================================================
diff --git a/source/blender/blenkernel/intern/lattice.c
b/source/blender/blenkernel/intern/lattice.c
index 4b9748133d7..edca0257d20 100644
--- a/source/blender/blenkernel/intern/lattice.c
+++ b/source/blender/blenkernel/intern/lattice.c
@@ -859,47 +859,40 @@ void lattice_deform_verts(Object *laOb, Object *target,
DerivedMesh *dm,
float (*vertexCos)[3], int numVerts, const char
*vgroup, float fac)
{
LatticeDeformData *lattice_deform_data;
+ MDeformVert *dvert = NULL;
+ int defgrp_index = -1;
int a;
- bool use_vgroups;
if (laOb->type != OB_LATTICE)
return;
lattice_deform_data = init_latt_deform(laOb, target);
- /* check whether to use vertex groups (only possible if target is a
Mesh)
- * we want either a Mesh with no derived data, or derived data with
- * deformverts
+ /* Check whether to use vertex groups (only possible if target is a
Mesh or Lattice).
+ * We want either a Mesh/Lattice with no derived data, or derived data
with deformverts.
*/
- if (target && target->type == OB_MESH) {
- /* if there's derived data without deformverts, don't use
vgroups */
- if (dm) {
- use_vgroups = (dm->getVertDataArray(dm, CD_MDEFORMVERT)
!= NULL);
- }
- else {
- Mesh *me = target->data;
- use_vgroups = (me->dvert != NULL);
+ if (vgroup && vgroup[0] && target && ELEM(target->type, OB_MESH,
OB_LATTICE)) {
+ defgrp_index = defgroup_name_index(target, vgroup);
+
+ if (defgrp_index != -1) {
+ /* if there's derived data without deformverts, don't
use vgroups */
+ if (dm) {
+ dvert = dm->getVertDataArray(dm,
CD_MDEFORMVERT);
+ }
+ else if (target->type == OB_LATTICE) {
+ dvert = ((Lattice *)target->data)->dvert;
+ }
+ else {
+ dvert = ((Mesh *)target->data)->dvert;
+ }
}
}
- else {
- use_vgroups = false;
- }
-
- if (vgroup && vgroup[0] && use_vgroups) {
- Mesh *me = target->data;
- const int defgrp_index = defgroup_name_index(target, vgroup);
- float weight;
-
- if (defgrp_index >= 0 && (me->dvert || dm)) {
- MDeformVert *dvert = me->dvert;
-
- for (a = 0; a < numVerts; a++, dvert++) {
- if (dm) dvert = dm->getVertData(dm, a,
CD_MDEFORMVERT);
-
- weight = defvert_find_weight(dvert,
defgrp_index);
-
- if (weight > 0.0f)
- calc_latt_deform(lattice_deform_data,
vertexCos[a], weight * fac);
+ if (dvert) {
+ MDeformVert *dvert_iter;
+ for (a = 0, dvert_iter = dvert; a < numVerts; a++,
dvert_iter++) {
+ const float weight = defvert_find_weight(dvert_iter,
defgrp_index);
+ if (weight > 0.0f) {
+ calc_latt_deform(lattice_deform_data,
vertexCos[a], weight * fac);
}
}
}
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