svn merge ^/trunk/blender -r43693:43733

1 files changed, 19 insertions, 33 deletions

diff --git a/source/blender/blenkernel/intern/cloth.c b/source/blender/blenkernel/intern/cloth.c
index 44df3edb3e5..ca0898a7085 100644
--- a/source/blender/blenkernel/intern/cloth.c
+++ b/source/blender/blenkernel/intern/cloth.c
@@ -91,7 +91,7 @@ static CM_SOLVER_DEF	solvers [] =
 /* ********** cloth engine ******* */
 /* Prototypes for internal functions.
 */
-static void cloth_to_object (Object *ob,  ClothModifierData *clmd, DerivedMesh *dm);
+static void cloth_to_object (Object *ob,  ClothModifierData *clmd, float (*vertexCos)[3]);
 static void cloth_from_mesh ( ClothModifierData *clmd, DerivedMesh *dm );
 static int cloth_from_object(Object *ob, ClothModifierData *clmd, DerivedMesh *dm, float framenr, int first);
 static int cloth_build_springs ( ClothModifierData *clmd, DerivedMesh *dm );
@@ -430,9 +430,8 @@ static int do_step_cloth(Object *ob, ClothModifierData *clmd, DerivedMesh *resul
 /************************************************
  * clothModifier_do - main simulation function
 ************************************************/
-DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob, DerivedMesh *dm)
+void clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob, DerivedMesh *dm, float (*vertexCos)[3])
 {
-	DerivedMesh *result;
 	PointCache *cache;
 	PTCacheID pid;
 	float timescale;
@@ -442,20 +441,14 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 	clmd->scene= scene;	/* nice to pass on later :) */
 	framenr= (int)scene->r.cfra;
 	cache= clmd->point_cache;
-	result = CDDM_copy(dm, 0);
 
 	BKE_ptcache_id_from_cloth(&pid, ob, clmd);
 	BKE_ptcache_id_time(&pid, scene, framenr, &startframe, &endframe, &timescale);
 	clmd->sim_parms->timescale= timescale;
 
-	if(!result) {
-		BKE_ptcache_invalidate(cache);
-		return dm;
-	}
-
 	if(clmd->sim_parms->reset
 		|| (framenr == (startframe - clmd->sim_parms->preroll) && clmd->sim_parms->preroll != 0)
-		|| (clmd->clothObject && result->getNumVerts(result) != clmd->clothObject->numverts))
+		|| (clmd->clothObject && dm->getNumVerts(dm) != clmd->clothObject->numverts))
 	{
 		clmd->sim_parms->reset = 0;
 		cache->flag |= PTCACHE_OUTDATED;
@@ -463,7 +456,7 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 		BKE_ptcache_validate(cache, 0);
 		cache->last_exact= 0;
 		cache->flag &= ~PTCACHE_REDO_NEEDED;
-		return result;
+		return;
 	}
 	
 	// unused in the moment, calculated separately in implicit.c
@@ -475,20 +468,20 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 
 		/* do simulation */
 		if(!do_init_cloth(ob, clmd, dm, framenr))
-			return result;
+			return;
 
 		do_step_cloth(ob, clmd, dm, framenr);
-		cloth_to_object(ob, clmd, result);
+		cloth_to_object(ob, clmd, vertexCos);
 
 		clmd->clothObject->last_frame= framenr;
 
-		return result;
+		return;
 	}
 
 	/* simulation is only active during a specific period */
 	if(framenr < startframe) {
 		BKE_ptcache_invalidate(cache);
-		return result;
+		return;
 	}
 	else if(framenr > endframe) {
 		framenr= endframe;
@@ -496,7 +489,7 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 
 	/* initialize simulation data if it didn't exist already */
 	if(!do_init_cloth(ob, clmd, dm, framenr))
-		return result;
+		return;
 
 	if((framenr == startframe) && (clmd->sim_parms->preroll == 0)) {
 		BKE_ptcache_id_reset(scene, &pid, PTCACHE_RESET_OUTDATED);
@@ -504,7 +497,7 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 		BKE_ptcache_validate(cache, framenr);
 		cache->flag &= ~PTCACHE_REDO_NEEDED;
 		clmd->clothObject->last_frame= framenr;
-		return result;
+		return;
 	}
 
 	/* try to read from cache */
@@ -512,7 +505,7 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 
 	if(cache_result == PTCACHE_READ_EXACT || cache_result == PTCACHE_READ_INTERPOLATED) {
 		implicit_set_positions(clmd);
-		cloth_to_object (ob, clmd, result);
+		cloth_to_object (ob, clmd, vertexCos);
 
 		BKE_ptcache_validate(cache, framenr);
 
@@ -521,7 +514,7 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 
 		clmd->clothObject->last_frame= framenr;
 
-		return result;
+		return;
 	}
 	else if(cache_result==PTCACHE_READ_OLD) {
 		implicit_set_positions(clmd);
@@ -529,11 +522,11 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 	else if( /*ob->id.lib ||*/ (cache->flag & PTCACHE_BAKED)) { /* 2.4x disabled lib, but this can be used in some cases, testing further - campbell */
 		/* if baked and nothing in cache, do nothing */
 		BKE_ptcache_invalidate(cache);
-		return result;
+		return;
 	}
 
 	if(framenr!=clmd->clothObject->last_frame+1)
-		return result;
+		return;
 
 	/* if on second frame, write cache for first frame */
 	if(cache->simframe == startframe && (cache->flag & PTCACHE_OUTDATED || cache->last_exact==0))
@@ -550,10 +543,8 @@ DerivedMesh *clothModifier_do(ClothModifierData *clmd, Scene *scene, Object *ob,
 	else
 		BKE_ptcache_write(&pid, framenr);
 
-	cloth_to_object (ob, clmd, result);
+	cloth_to_object (ob, clmd, vertexCos);
 	clmd->clothObject->last_frame= framenr;
-
-	return result;
 }
 
 /* frees all */
@@ -708,24 +699,19 @@ void cloth_free_modifier_extern ( ClothModifierData *clmd )
  * cloth_to_object - copies the deformed vertices to the object.
  *
  **/
-static void cloth_to_object (Object *ob,  ClothModifierData *clmd, DerivedMesh *dm)
+static void cloth_to_object (Object *ob,  ClothModifierData *clmd, float (*vertexCos)[3])
 {
 	unsigned int	i = 0;
-	MVert *mvert = NULL;
-	unsigned int numverts;
 	Cloth *cloth = clmd->clothObject;
 
 	if (clmd->clothObject) {
 		/* inverse matrix is not uptodate... */
 		invert_m4_m4(ob->imat, ob->obmat);
 
-		mvert = CDDM_get_verts(dm);
-		numverts = dm->getNumVerts(dm);
-
-		for (i = 0; i < numverts; i++)
+		for (i = 0; i < cloth->numverts; i++)
 		{
-			copy_v3_v3 (mvert[i].co, cloth->verts[i].x);
-			mul_m4_v3(ob->imat, mvert[i].co);	/* cloth is in global coords */
+			copy_v3_v3 (vertexCos[i], cloth->verts[i].x);
+			mul_m4_v3(ob->imat, vertexCos[i]);	/* cloth is in global coords */
 		}
 	}
 }