Multires: implement reshape operation

The one which is used by applying deformation modifiers on the multires.

1 files changed, 64 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/multires_subdiv.c b/source/blender/blenkernel/intern/multires_subdiv.c
new file mode 100644
index 00000000000..ef19fdb6f28
--- /dev/null
+++ b/source/blender/blenkernel/intern/multires_subdiv.c
@@ -0,0 +1,64 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software  Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2018 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Sergey Sharybin.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/blenkernel/intern/multires_subdiv.c
+ *  \ingroup bke
+ */
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_mesh_types.h"
+#include "DNA_scene_types.h"
+
+#include "BLI_utildefines.h"
+
+#include "BKE_library.h"
+#include "BKE_mesh.h"
+#include "BKE_modifier.h"
+#include "BKE_multires.h"
+#include "BKE_subdiv.h"
+
+void BKE_multires_subdiv_settings_init(
+        SubdivSettings *settings,
+        const MultiresModifierData *mmd)
+{
+	settings->is_simple = (mmd->simple != 0);
+	settings->is_adaptive = !settings->is_simple;
+	settings->level = mmd->quality;
+	settings->fvar_linear_interpolation =
+	        BKE_subdiv_fvar_interpolation_from_uv_smooth(mmd->uv_smooth);
+}
+
+void BKE_multires_subdiv_mesh_settings_init(
+        SubdivToMeshSettings *mesh_settings,
+        const Scene *scene,
+        const Object *object,
+        const MultiresModifierData *mmd,
+        const bool use_render_params)
+{
+	const int level = multires_get_level(
+	        scene, object, mmd, use_render_params, false);
+	mesh_settings->resolution = (1 << level) + 1;
+}