From 16a37bcd31894ce17ed7d5aba9af2ac1b4f6c653 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brechtvanlommel@pandora.be>
Date: Thu, 17 Jan 2008 12:02:15 +0000
Subject: [PATCH] Bugfix for "ghost feathers" trailing one frame behind the
 character. The derivedmesh and particle system needed to be evaluated at
 render level before creating dupliparticles.

---
 source/blender/blenkernel/intern/object.c            | 9 +++++++++
 source/blender/render/intern/source/convertblender.c | 7 -------
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/source/blender/blenkernel/intern/object.c b/source/blender/blenkernel/intern/object.c
index de2875c91f4..bfe2b56b289 100644
--- a/source/blender/blenkernel/intern/object.c
+++ b/source/blender/blenkernel/intern/object.c
@@ -2199,6 +2199,7 @@ void object_handle_update(Object *ob)
 
 			if(ob->particlesystem.first) {
 				ParticleSystem *tpsys, *psys;
+				DerivedMesh *dm;
 				
 				psys= ob->particlesystem.first;
 				while(psys) {
@@ -2215,6 +2216,14 @@ void object_handle_update(Object *ob)
 					else
 						psys= psys->next;
 				}
+
+				if(G.rendering && ob->transflag & OB_DUPLIPARTS) {
+					/* this is to make sure we get render level duplis in groups:
+					 * the derivedmesh must be created before init_render_mesh,
+					 * since object_duplilist does dupliparticles before that */
+					dm = mesh_create_derived_render(ob, CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
+					dm->release(dm);
+				}
 			}
 		}
 
diff --git a/source/blender/render/intern/source/convertblender.c b/source/blender/render/intern/source/convertblender.c
index 44db5280165..25b5dac2a55 100644
--- a/source/blender/render/intern/source/convertblender.c
+++ b/source/blender/render/intern/source/convertblender.c
@@ -4136,18 +4136,11 @@ static void dupli_render_particle_set(Render *re, Object *ob, int level, int ena
 		return;
 	
 	if(ob->transflag & OB_DUPLIPARTS) {
-		DerivedMesh *dm;
-
 		for(psys=ob->particlesystem.first; psys; psys=psys->next)
 			if(enable)
 				psys_render_set(ob, psys, re->viewmat, re->winmat, re->winx, re->winy);
 			else
 				psys_render_restore(ob, psys);
-
-		if(enable) {
-			dm = mesh_create_derived_render(ob,	CD_MASK_BAREMESH|CD_MASK_MTFACE|CD_MASK_MCOL);
-			dm->release(dm);
-		}
 	}
 
 	if(ob->dup_group==NULL) return;