1 files changed, 72 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/multires_reshape_ccg.c b/source/blender/blenkernel/intern/multires_reshape_ccg.c
new file mode 100644
index 00000000000..1f8c782ed46
--- /dev/null
+++ b/source/blender/blenkernel/intern/multires_reshape_ccg.c
@@ -0,0 +1,72 @@
+/*
+ * 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) 2020 Blender Foundation.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup bke
+ */
+
+#include "multires_reshape.h"
+
+#include <string.h>
+
+#include "BLI_utildefines.h"
+
+#include "BKE_ccg.h"
+#include "BKE_subdiv_ccg.h"
+
+bool multires_reshape_assign_final_coords_from_ccg(const MultiresReshapeContext *reshape_context,
+                                                   struct SubdivCCG *subdiv_ccg)
+{
+  CCGKey reshape_level_key;
+  BKE_subdiv_ccg_key(&reshape_level_key, subdiv_ccg, reshape_context->reshape.level);
+
+  const int reshape_grid_size = reshape_context->reshape.grid_size;
+  const float reshape_grid_size_1_inv = 1.0f / (((float)reshape_grid_size) - 1.0f);
+
+  int num_grids = subdiv_ccg->num_grids;
+  for (int grid_index = 0; grid_index < num_grids; ++grid_index) {
+    CCGElem *ccg_grid = subdiv_ccg->grids[grid_index];
+    for (int y = 0; y < reshape_grid_size; ++y) {
+      const float v = (float)y * reshape_grid_size_1_inv;
+      for (int x = 0; x < reshape_grid_size; ++x) {
+        const float u = (float)x * reshape_grid_size_1_inv;
+
+        GridCoord grid_coord;
+        grid_coord.grid_index = grid_index;
+        grid_coord.u = u;
+        grid_coord.v = v;
+
+        ReshapeGridElement grid_element = multires_reshape_grid_element_for_grid_coord(
+            reshape_context, &grid_coord);
+
+        BLI_assert(grid_element.displacement != NULL);
+        memcpy(grid_element.displacement,
+               CCG_grid_elem_co(&reshape_level_key, ccg_grid, x, y),
+               sizeof(float) * 3);
+
+        if (reshape_level_key.has_mask) {
+          BLI_assert(grid_element.mask != NULL);
+          *grid_element.mask = *CCG_grid_elem_mask(&reshape_level_key, ccg_grid, x, y);
+        }
+      }
+    }
+  }
+
+  return true;
+}