rna api

- allow RegionView3D.view_matrix to be set.
- RegionView3D.view_rotation was inverted.
- add C function view3d_settings_from_mat()
note, intentionally removed NULL checks, double checked this is ok with callers.

source/blender/editors/include/ED_view3d.h

@@ -183,5 +183,11 @@ int ED_view3d_lock(struct RegionView3D *rv3d);
 unsigned int ED_view3d_datamask(struct Scene *scene, struct View3D *v3d);
 unsigned int ED_viewedit_datamask(struct bScreen *screen);
 
+
+/* assigning view matrix */
+void view3d_settings_from_mat(float mat[][4], float *ofs, float *quat, float *dist);
+void view3d_settings_from_ob(struct Object *ob, float *ofs, float *quat, float *dist, float *lens);
+int view3d_is_ortho(struct View3D *v3d, struct RegionView3D *rv3d);
+
 #endif /* ED_VIEW3D_H */
 

source/blender/editors/space_view3d/view3d_intern.h

@@ -147,10 +147,6 @@ void VIEW3D_OT_select_circle(struct wmOperatorType *ot);
 void VIEW3D_OT_select_border(struct wmOperatorType *ot);
 void VIEW3D_OT_select_lasso(struct wmOperatorType *ot);
 
-/* view3d_view.c */
-void view3d_settings_from_ob(struct Object *ob, float *ofs, float *quat, float *dist, float *lens);
-int view3d_is_ortho(View3D *v3d, RegionView3D *rv3d);
-
 void VIEW3D_OT_smoothview(struct wmOperatorType *ot);
 void VIEW3D_OT_setcameratoview(struct wmOperatorType *ot);
 void VIEW3D_OT_object_as_camera(struct wmOperatorType *ot);

source/blender/editors/space_view3d/view3d_view.c

@@ -107,8 +107,6 @@ float *give_cursor(Scene *scene, View3D *v3d)
 /* Gets the lens and clipping values from a camera of lamp type object */
 static void object_lens_clip_settings(Object *ob, float *lens, float *clipsta, float *clipend)
 {
-	if (!ob) return;
-	
 	if(ob->type==OB_LAMP ) {
 		Lamp *la = ob->data;
 		if (lens) {
@@ -137,40 +135,43 @@ static void object_lens_clip_settings(Object *ob, float *lens, float *clipsta, f
 * 
 * The dist is not modified for this function, if NULL its assimed zero
 * */
-void view3d_settings_from_ob(Object *ob, float *ofs, float *quat, float *dist, float *lens)
+void view3d_settings_from_mat(float mat[][4], float *ofs, float *quat, float *dist)
 {
-	if (!ob) return;
-
 	/* Offset */
 	if (ofs)
-		negate_v3_v3(ofs, ob->obmat[3]);
+		negate_v3_v3(ofs, mat[3]);
 
 	/* Quat */
 	if (quat) {
 		float imat[4][4];
-		invert_m4_m4(imat, ob->obmat);
+		invert_m4_m4(imat, mat);
 		mat4_to_quat(quat, imat);
 	}
 
 	if (dist) {
-		float tquat[4];
+		float nmat[3][3];
 		float vec[3];
 
 		vec[0]= 0.0f;
 		vec[1]= 0.0f;
 		vec[2]= -(*dist);
 
-		mat4_to_quat(tquat, ob->obmat);
+		copy_m3_m4(nmat, mat);
-
+		normalize_m3(nmat);
-		mul_qt_v3(tquat, vec);
 
+		mul_m3_v3(nmat, vec);;
 		sub_v3_v3(ofs, vec);
 	}
+}
 
-	/* Lens */
+void view3d_settings_from_ob(Object *ob, float *ofs, float *quat, float *dist, float *lens)
-	if (lens)
+{
+	view3d_settings_from_mat(ob->obmat, ofs, quat, dist);
+
+	if (lens) {
 		object_lens_clip_settings(ob, lens, NULL, NULL);
 	}
+}
 
 
 /* ****************** smooth view operator ****************** */

source/blender/makesrna/intern/rna_space.c

@@ -384,6 +384,25 @@ static void rna_RegionView3D_view_location_set(PointerRNA *ptr, const float *val
 	negate_v3_v3(rv3d->ofs, values);
 }
 
+static void rna_RegionView3D_view_rotation_get(PointerRNA *ptr, float *values)
+{
+	RegionView3D *rv3d= (RegionView3D *)(ptr->data);
+	invert_qt_qt(values, rv3d->viewquat);
+}
+
+static void rna_RegionView3D_view_rotation_set(PointerRNA *ptr, const float *values)
+{
+	RegionView3D *rv3d= (RegionView3D *)(ptr->data);
+	invert_qt_qt(rv3d->viewquat, values);
+}
+
+static void rna_RegionView3D_view_matrix_set(PointerRNA *ptr, const float *values)
+{
+	RegionView3D *rv3d= (RegionView3D *)(ptr->data);
+	negate_v3_v3(rv3d->ofs, values);
+	view3d_settings_from_mat((float (*)[4])values, rv3d->ofs, rv3d->viewquat, &rv3d->dist);
+}
+
 /* Space Image Editor */
 
 static PointerRNA rna_SpaceImageEditor_uvedit_get(PointerRNA *ptr)
@@ -1361,9 +1380,10 @@ static void rna_def_space_view3d(BlenderRNA *brna)
 	
 	prop= RNA_def_property(srna, "view_matrix", PROP_FLOAT, PROP_MATRIX);
 	RNA_def_property_float_sdna(prop, NULL, "viewmat");
-	RNA_def_property_clear_flag(prop, PROP_EDITABLE); // XXX: for now, it's too risky for users to do this
 	RNA_def_property_multi_array(prop, 2, matrix_dimsize);
+	RNA_def_property_float_funcs(prop, NULL, "rna_RegionView3D_view_matrix_set", NULL);
 	RNA_def_property_ui_text(prop, "View Matrix", "Current view matrix of the 3D region");
+	RNA_def_property_update(prop, NC_SPACE|ND_SPACE_VIEW3D, NULL);
 
 	prop= RNA_def_property(srna, "view_perspective", PROP_ENUM, PROP_NONE);
 	RNA_def_property_enum_sdna(prop, NULL, "persp");
@@ -1382,8 +1402,13 @@ static void rna_def_space_view3d(BlenderRNA *brna)
 	RNA_def_property_ui_range(prop, -10000.0, 10000.0, 10, 4);
 	RNA_def_property_update(prop, NC_WINDOW, NULL);
 	
-	prop= RNA_def_property(srna, "view_rotation", PROP_FLOAT, PROP_QUATERNION);
+	prop= RNA_def_property(srna, "view_rotation", PROP_FLOAT, PROP_QUATERNION); // cant use because its inverted
+#if 0
 	RNA_def_property_float_sdna(prop, NULL, "viewquat");
+#else
+	RNA_def_property_array(prop, 4);
+	RNA_def_property_float_funcs(prop, "rna_RegionView3D_view_rotation_get", "rna_RegionView3D_view_rotation_set", NULL);
+#endif
 	RNA_def_property_ui_text(prop, "View Rotation", "Rotation in quaternions (keep normalized)");
 	RNA_def_property_update(prop, NC_SPACE|ND_SPACE_VIEW3D, NULL);