Bug #4348

Animated groups, being linked and dupli-grouped in other file, didn't
correctly calculate particles inside the group.

source/blender/blenkernel/intern/depsgraph.c

@@ -65,6 +65,7 @@
 #include "BKE_action.h"
 #include "BKE_effect.h"
 #include "BKE_global.h"
+#include "BKE_group.h"
 #include "BKE_key.h"
 #include "BKE_main.h"
 #include "BKE_mball.h"
@@ -1209,7 +1210,7 @@ struct DagNodeQueue *get_all_childs(struct DagForest	*dag, void *ob)
 	
 	time = 1;
 	
-	node = dag_find_node(dag,ob);   // could be done in loop above (ton)
+	node = dag_find_node(dag, ob);   // could be done in loop above (ton)
 	if(node) { // can be null for newly added objects
 		
 		node->color = DAG_GRAY;
@@ -1253,7 +1254,7 @@ short	are_obs_related(struct DagForest	*dag, void *ob1, void *ob2) {
 	DagNode * node;
 	DagAdjList *itA;
 	
-	node = dag_find_node(dag,ob1);
+	node = dag_find_node(dag, ob1);
 	
 	itA = node->child;
 	while(itA != NULL) {
@@ -1881,24 +1882,38 @@ void DAG_object_update_flags(Scene *sce, Object *ob, unsigned int lay)
 	for(node = sce->theDag->DagNode.first; node; node= node->next) 
 		node->color = DAG_WHITE;
 	
-	node = dag_get_node(sce->theDag, ob);
-	node->color = DAG_GRAY;
+	node= dag_find_node(sce->theDag, ob);
 	
-	sce->theDag->time++;
-	node= sce->theDag->DagNode.first;
-	for(itA = node->child; itA; itA= itA->next) {
-		if(itA->node->type==ID_OB && itA->node->lasttime!=sce->theDag->time)
-			itA->node->color= parent_check_node(itA->node, sce->theDag->time);
+	/* object not in scene? then handle group exception. needs to be dagged once too */
+	if(node==NULL) {
+		Group *group= find_group(ob);
+		if(group) {
+			GroupObject *go;
+			/* primitive; tag all... this call helps building groups for particles */
+			for(go= group->gobject.first; go; go= go->next)
+				go->ob->recalc= OB_RECALC;
+		}
 	}
-	
-	/* set recalcs and flushes */
-	DAG_scene_update_flags(sce, lay);
-	
-	/* now we clear recalcs, unless color is set */
-	for(node = sce->theDag->DagNode.first; node; node= node->next) {
-		if(node->type==ID_OB && node->color==DAG_WHITE) {
-			Object *ob= node->ob;
-			ob->recalc= 0;
+	else {
+		
+		node->color = DAG_GRAY;
+		
+		sce->theDag->time++;
+		node= sce->theDag->DagNode.first;
+		for(itA = node->child; itA; itA= itA->next) {
+			if(itA->node->type==ID_OB && itA->node->lasttime!=sce->theDag->time)
+				itA->node->color= parent_check_node(itA->node, sce->theDag->time);
+		}
+		
+		/* set recalcs and flushes */
+		DAG_scene_update_flags(sce, lay);
+		
+		/* now we clear recalcs, unless color is set */
+		for(node = sce->theDag->DagNode.first; node; node= node->next) {
+			if(node->type==ID_OB && node->color==DAG_WHITE) {
+				Object *ob= node->ob;
+				ob->recalc= 0;
+			}
 		}
 	}
 }

source/blender/blenkernel/intern/effect.c

@@ -74,6 +74,7 @@
 #include "BKE_DerivedMesh.h"
 #include "BKE_effect.h"
 #include "BKE_global.h"
+#include "BKE_group.h"
 #include "BKE_ipo.h"
 #include "BKE_key.h"
 #include "BKE_lattice.h"
@@ -81,6 +82,7 @@
 #include "BKE_material.h"
 #include "BKE_main.h"
 #include "BKE_object.h"
+#include "BKE_scene.h"
 #include "BKE_screen.h"
 #include "BKE_utildefines.h"
 
@@ -1528,10 +1530,15 @@ typedef struct pMatrixCache {
 static pMatrixCache *cache_object_matrices(Object *ob, int start, int end)
 {
 	pMatrixCache *mcache, *mc;
+	Group *group= NULL;
 	Object *obcopy;
 	Base *base;
 	float framelenold, cfrao;
 	
+	/* object can be linked in group... stupid exception */
+	if(NULL==object_in_scene(ob, G.scene))
+		group= find_group(ob);
+	
 	mcache= mc= MEM_mallocN( (end-start+1)*sizeof(pMatrixCache), "ob matrix cache");
 	
 	framelenold= G.scene->r.framelen;
@@ -1543,25 +1550,42 @@ static pMatrixCache *cache_object_matrices(Object *ob, int start, int end)
 	for(obcopy= G.main->object.first; obcopy; obcopy= obcopy->id.next) 
 		obcopy->id.newid= NULL;
 	
-	/* all objects get tagged recalc that influence this object */
+	/* all objects get tagged recalc that influence this object (does group too) */
 	DAG_object_update_flags(G.scene, ob, G.scene->lay);
 	
 	for(G.scene->r.cfra= start; G.scene->r.cfra<=end; G.scene->r.cfra++, mc++) {
-		for(base= G.scene->base.first; base; base= base->next) {
-			if(base->object->recalc) {
-				if(base->object->id.newid==NULL)
-					base->object->id.newid= MEM_dupallocN(base->object);
-				
-				where_is_object(base->object);
-				
-				do_ob_key(base->object);
-				if(base->object->type==OB_ARMATURE) {
-					do_all_pose_actions(base->object);	// only does this object actions
-					where_is_pose(base->object);
+		
+		if(group) {
+			GroupObject *go;
+
+			for(go= group->gobject.first; go; go= go->next) {
+				if(go->ob->recalc) {
+					where_is_object(go->ob);
+					
+					do_ob_key(go->ob);
+					if(go->ob->type==OB_ARMATURE) {
+						do_all_pose_actions(go->ob);	// only does this object actions
+						where_is_pose(go->ob);
+					}
 				}
 			}
 		}
-		
+		else {
+			for(base= G.scene->base.first; base; base= base->next) {
+				if(base->object->recalc) {
+					if(base->object->id.newid==NULL)
+						base->object->id.newid= MEM_dupallocN(base->object);
+					
+					where_is_object(base->object);
+					
+					do_ob_key(base->object);
+					if(base->object->type==OB_ARMATURE) {
+						do_all_pose_actions(base->object);	// only does this object actions
+						where_is_pose(base->object);
+					}
+				}
+			}
+		}		
 		Mat4CpyMat4(mc->obmat, ob->obmat);
 		Mat4Invert(ob->imat, ob->obmat);
 		Mat3CpyMat4(mc->imat, ob->imat);
@@ -1572,24 +1596,40 @@ static pMatrixCache *cache_object_matrices(Object *ob, int start, int end)
 	G.scene->r.cfra= cfrao;
 	G.scene->r.framelen= framelenold;
 
-	for(base= G.scene->base.first; base; base= base->next) {
-		if(base->object->recalc) {
-			
-			if(base->object->id.newid) {
-				obcopy= (Object *)base->object->id.newid;
-				*(base->object) = *(obcopy); 
-				MEM_freeN(obcopy);
-				base->object->id.newid= NULL;
-			}
-			
-			do_ob_key(base->object);
-			if(base->object->type==OB_ARMATURE) {
-				do_all_pose_actions(base->object);	// only does this object actions
-				where_is_pose(base->object);
+	if(group) {
+		GroupObject *go;
+		
+		for(go= group->gobject.first; go; go= go->next) {
+			if(go->ob->recalc) {
+				where_is_object(go->ob);
+				
+				do_ob_key(go->ob);
+				if(go->ob->type==OB_ARMATURE) {
+					do_all_pose_actions(go->ob);	// only does this object actions
+					where_is_pose(go->ob);
+				}
 			}
 		}
 	}
-	
+	else {
+		for(base= G.scene->base.first; base; base= base->next) {
+			if(base->object->recalc) {
+				
+				if(base->object->id.newid) {
+					obcopy= (Object *)base->object->id.newid;
+					*(base->object) = *(obcopy); 
+					MEM_freeN(obcopy);
+					base->object->id.newid= NULL;
+				}
+				
+				do_ob_key(base->object);
+				if(base->object->type==OB_ARMATURE) {
+					do_all_pose_actions(base->object);	// only does this object actions
+					where_is_pose(base->object);
+				}
+			}
+		}
+	}	
 	return mcache;
 }