[Bf-blender-cvs] [89f1778] alembic: Option for the haircut cache modifier to either use a scene object or an "internal" object from the group.

[Lukas Tönne]

Commit: 89f17783285be016b36255368c618ed80ec42235
Author: Lukas Tönne
Date:   Fri May 22 12:30:55 2015 +0200
Branches: alembic
https://developer.blender.org/rB89f17783285be016b36255368c618ed80ec42235

Option for the haircut cache modifier to either use a scene object or
an "internal" object from the group.

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

M       release/scripts/startup/bl_ui/properties_object.py
M       source/blender/blenkernel/intern/cache_library.c
M       source/blender/makesdna/DNA_cache_library_types.h
M       source/blender/makesrna/intern/rna_cache_library.c

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

diff --git a/release/scripts/startup/bl_ui/properties_object.py 
b/release/scripts/startup/bl_ui/properties_object.py
index 6241c86..f870f65 100644
--- a/release/scripts/startup/bl_ui/properties_object.py
+++ b/release/scripts/startup/bl_ui/properties_object.py
@@ -567,7 +567,9 @@ class OBJECT_PT_cache_library(ObjectButtonsPanel, Panel):
             sub.enabled = False
             sub.prop(md, "hair_system")
 
-        layout.prop_search(md, "target", context.blend_data, "objects", 
icon='OBJECT_DATA')
+        row = layout.row()
+        row.prop_search(md, "target", context.blend_data, "objects", 
icon='OBJECT_DATA')
+        row.prop(md, "use_internal_target", text="Internal")
 
         layout = layout.column()
         layout.active = md.hair_system is not None
diff --git a/source/blender/blenkernel/intern/cache_library.c 
b/source/blender/blenkernel/intern/cache_library.c
index d934c9d..07b24a5 100644
--- a/source/blender/blenkernel/intern/cache_library.c
+++ b/source/blender/blenkernel/intern/cache_library.c
@@ -1793,20 +1793,29 @@ static void haircut_apply(HaircutCacheModifier *hmd, 
HaircutCacheData *data, Str
        }
 }
 
-static void haircut_process(HaircutCacheModifier *hmd, CacheProcessContext 
*UNUSED(ctx), CacheProcessData *data, int UNUSED(frame), int 
UNUSED(frame_prev), eCacheLibrary_EvalMode UNUSED(eval_mode))
+static void haircut_process(HaircutCacheModifier *hmd, CacheProcessContext 
*ctx, CacheProcessData *data, int UNUSED(frame), int UNUSED(frame_prev), 
eCacheLibrary_EvalMode UNUSED(eval_mode))
 {
        Object *ob = hmd->object;
        DupliObject *dob;
        Strands *strands;
-       DupliObjectData *target_data;
+       DerivedMesh *target_dm;
        float mat[4][4];
        
        HaircutCacheData shrinkwrap;
        
        if (!BKE_cache_modifier_find_strands(data->dupcache, ob, 
hmd->hair_system, NULL, &strands, NULL))
                return;
-       if (!BKE_cache_modifier_find_object(data->dupcache, hmd->target, 
&target_data))
-               return;
+       if (hmd->flag & eHaircutCacheModifier_Flag_InternalTarget) {
+               DupliObjectData *target_data;
+               if (!BKE_cache_modifier_find_object(data->dupcache, 
hmd->target, &target_data))
+                       return;
+               target_dm = target_data->dm;
+       }
+       else {
+               if (!hmd->target)
+                       return;
+               target_dm = mesh_get_derived_final(ctx->scene, hmd->target, 
CD_MASK_BAREMESH);
+       }
        
        for (dob = data->dupcache->duplilist.first; dob; dob = dob->next) {
                if (dob->ob != ob)
@@ -1816,7 +1825,7 @@ static void haircut_process(HaircutCacheModifier *hmd, 
CacheProcessContext *UNUS
                invert_m4_m4(mat, dob->mat);
                
                memset(&shrinkwrap, 0, sizeof(shrinkwrap));
-               haircut_data_get_bvhtree(&shrinkwrap, target_data->dm, true);
+               haircut_data_get_bvhtree(&shrinkwrap, target_dm, true);
                haircut_data_get_instances(&shrinkwrap, hmd->target, mat, 
&data->dupcache->duplilist);
                
                haircut_apply(hmd, &shrinkwrap, strands);
diff --git a/source/blender/makesdna/DNA_cache_library_types.h 
b/source/blender/makesdna/DNA_cache_library_types.h
index 48b30d9..a8400eb 100644
--- a/source/blender/makesdna/DNA_cache_library_types.h
+++ b/source/blender/makesdna/DNA_cache_library_types.h
@@ -274,9 +274,13 @@ typedef struct HaircutCacheModifier {
        
        struct Object *object;
        int hair_system;
-       int pad;
+       int flag;
        
        struct Object *target;
 } HaircutCacheModifier;
 
+typedef enum eHaircutCacheModifier_Flag {
+       eHaircutCacheModifier_Flag_InternalTarget           = (1 << 0),
+} eHaircutCacheModifier_Flag;
+
 #endif
diff --git a/source/blender/makesrna/intern/rna_cache_library.c 
b/source/blender/makesrna/intern/rna_cache_library.c
index 5ed0d0f..39727cb 100644
--- a/source/blender/makesrna/intern/rna_cache_library.c
+++ b/source/blender/makesrna/intern/rna_cache_library.c
@@ -771,6 +771,11 @@ static void rna_def_cache_modifier_haircut(BlenderRNA 
*brna)
        RNA_def_property_flag(prop, PROP_EDITABLE);
        RNA_def_property_ui_text(prop, "Target", "Mesh object to wrap onto");
        RNA_def_property_update(prop, 0, "rna_CacheModifier_update");
+       
+       prop = RNA_def_property(srna, "use_internal_target", PROP_BOOLEAN, 
PROP_NONE);
+       RNA_def_property_boolean_sdna(prop, NULL, "flag", 
eHaircutCacheModifier_Flag_InternalTarget);
+       RNA_def_property_ui_text(prop, "Use Internal Target", "Use a cached 
object from the group instead of an object in the scene");
+       RNA_def_property_update(prop, 0, "rna_CacheModifier_update");
 }
 
 static void rna_def_cache_modifier(BlenderRNA *brna)

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