X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftrunk%2Fsrc%2Fmodules%2Fmod_particle%2Fplant.cpp;h=2a9393563a935de2746e5428df80f7314663259f;hb=5258ea3fc1fc9e3b45627fd217e5229fc53f305a;hp=66d78b8762f5653cc273966d936752932b6d753d;hpb=ad5f0566c633041148043fc60cb0103a7516a5e3;p=synfig.git

diff --git a/synfig-core/trunk/src/modules/mod_particle/plant.cpp b/synfig-core/trunk/src/modules/mod_particle/plant.cpp
index 66d78b8..2a93935 100644
--- a/synfig-core/trunk/src/modules/mod_particle/plant.cpp
+++ b/synfig-core/trunk/src/modules/mod_particle/plant.cpp
@@ -102,6 +102,7 @@ Plant::Plant():
 	splits=5;
 	drag=0.1;
 	size=0.015;
+	needs_sync_=true;
 	sync();
 	size_as_alpha=false;
 }
@@ -130,8 +131,10 @@ Plant::branch(int n,int depth,float t, float stunt_growth, synfig::Point positio
 	synfig::Real sin_v=synfig::Angle::cos(split_angle).get();
 	synfig::Real cos_v=synfig::Angle::sin(split_angle).get();
 
-	synfig::Vector velocity1(vel[0]*sin_v-vel[1]*cos_v+random_factor*random(2,30+n+depth,t*splits,0.0f,0.0f),vel[0]*cos_v+vel[1]*sin_v+random_factor*random(2,32+n+depth,t*splits,0.0f,0.0f));
-	synfig::Vector velocity2(vel[0]*sin_v+vel[1]*cos_v+random_factor*random(2,31+n+depth,t*splits,0.0f,0.0f),-vel[0]*cos_v+vel[1]*sin_v+random_factor*random(2,33+n+depth,t*splits,0.0f,0.0f));
+	synfig::Vector velocity1(vel[0]*sin_v - vel[1]*cos_v + random_factor*random(2, 30+n+depth, t*splits, 0.0f, 0.0f),
+							 vel[0]*cos_v + vel[1]*sin_v + random_factor*random(2, 32+n+depth, t*splits, 0.0f, 0.0f));
+	synfig::Vector velocity2(vel[0]*sin_v + vel[1]*cos_v + random_factor*random(2, 31+n+depth, t*splits, 0.0f, 0.0f),
+							-vel[0]*cos_v + vel[1]*sin_v + random_factor*random(2, 33+n+depth, t*splits, 0.0f, 0.0f));
 
 	Plant::branch(n,depth+1,t,stunt_growth,position,velocity1);
 	Plant::branch(n,depth+1,t,stunt_growth,position,velocity2);
@@ -145,7 +148,7 @@ Plant::calc_bounding_rect()const
 	bounding_rect=Rect::zero();
 
 	// Bline must have at least 2 points in it
-	if(bline.size()<=2)
+	if(bline.size()<2)
 		return;
 
 	next=bline.begin();
@@ -172,12 +175,14 @@ Plant::calc_bounding_rect()const
 void
 Plant::sync()const
 {
+	Mutex::Lock lock(mutex);
+	if (!needs_sync_) return;
 	particle_list.clear();
 
 	bounding_rect=Rect::zero();
 
 	// Bline must have at least 2 points in it
-	if(bline.size()<=2)
+	if(bline.size()<2)
 		return;
 
 	std::vector<synfig::BLinePoint>::const_iterator iter,next;