Commit: f2f3ef869237116cea90b8cd0bdaddc43c7f0af3
Author: Howard Trickey
Date: Wed Apr 16 14:17:30 2014 -0400
https://developer.blender.org/rBf2f3ef869237116cea90b8cd0bdaddc43c7f0af3
Fix Knife bug T39617: midpoint snap should affect intermediate points.
This reverts to the 2.69 behavior, where the snap-to-midpoint option
affected the intermediate crossed edges as well as the endpoints.
===================================================================
M source/blender/editors/mesh/editmesh_knife.c
===================================================================
diff --git a/source/blender/editors/mesh/editmesh_knife.c
b/source/blender/editors/mesh/editmesh_knife.c
index 1fcff82..d973523 100644
--- a/source/blender/editors/mesh/editmesh_knife.c
+++ b/source/blender/editors/mesh/editmesh_knife.c
@@ -1395,6 +1395,12 @@ static void knife_find_line_hits(KnifeTool_OpData *kcd)
isect_kind =
isect_line_line_v3(kfe->v1->cageco, kfe->v2->cageco, r1, r2, p, p2);
if (isect_kind >= 1 && point_is_visible(kcd, p,
sint, &mats)) {
memset(&hit, 0, sizeof(hit));
+ if (kcd->snap_midpoints) {
+ /* choose intermediate point
snap too */
+ mid_v3_v3v3(p, kfe->v1->cageco,
kfe->v2->cageco);
+ mid_v2_v2v2(sint, se1, se2);
+ lambda = 0.5f;
+ }
hit.kfe = kfe;
copy_v3_v3(hit.hit, p);
copy_v3_v3(hit.cagehit, p);
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