[Bf-blender-cvs] [648dbb2] alembic: Fix for stretch forces being defined wrt. the root vertex.

Lukas Tönne noreply at git.blender.org
Tue Apr 7 12:57:35 CEST 2015


Commit: 648dbb23f91964147c86b329b56bc2acea90c1a4
Author: Lukas Tönne
Date:   Tue Apr 7 12:56:36 2015 +0200
Branches: alembic
https://developer.blender.org/rB648dbb23f91964147c86b329b56bc2acea90c1a4

Fix for stretch forces being defined wrt. the root vertex.

Was not advancing the iterator for the previous vertex correctly.

===================================================================

M	source/blender/physics/intern/BPH_mass_spring.cpp

===================================================================

diff --git a/source/blender/physics/intern/BPH_mass_spring.cpp b/source/blender/physics/intern/BPH_mass_spring.cpp
index 6d35db1..16b9bec 100644
--- a/source/blender/physics/intern/BPH_mass_spring.cpp
+++ b/source/blender/physics/intern/BPH_mass_spring.cpp
@@ -1265,7 +1265,7 @@ static void strands_calc_force(Strands *strands, HairSimParams *params, Implicit
 		if (BKE_strand_vertex_iter_valid(&it_vert)) {
 			it_vert_prev = it_vert;
 			BKE_strand_vertex_iter_next(&it_vert);
-			for (; BKE_strand_vertex_iter_valid(&it_vert); BKE_strand_vertex_iter_next(&it_vert)) {
+			for (; BKE_strand_vertex_iter_valid(&it_vert); it_vert_prev = it_vert, BKE_strand_vertex_iter_next(&it_vert)) {
 				
 				int vi = BKE_strand_vertex_iter_vertex_offset(strands, &it_vert);
 				int vj = BKE_strand_vertex_iter_vertex_offset(strands, &it_vert_prev);




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