73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2020 Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup bke
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*/
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#include "multires_reshape.h"
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#include <string.h>
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#include "BLI_utildefines.h"
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#include "BKE_ccg.h"
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#include "BKE_subdiv_ccg.h"
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bool multires_reshape_assign_final_coords_from_ccg(const MultiresReshapeContext *reshape_context,
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struct SubdivCCG *subdiv_ccg)
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{
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CCGKey reshape_level_key;
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BKE_subdiv_ccg_key(&reshape_level_key, subdiv_ccg, reshape_context->reshape.level);
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const int reshape_grid_size = reshape_context->reshape.grid_size;
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const float reshape_grid_size_1_inv = 1.0f / (((float)reshape_grid_size) - 1.0f);
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int num_grids = subdiv_ccg->num_grids;
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for (int grid_index = 0; grid_index < num_grids; ++grid_index) {
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CCGElem *ccg_grid = subdiv_ccg->grids[grid_index];
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for (int y = 0; y < reshape_grid_size; ++y) {
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const float v = (float)y * reshape_grid_size_1_inv;
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for (int x = 0; x < reshape_grid_size; ++x) {
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const float u = (float)x * reshape_grid_size_1_inv;
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GridCoord grid_coord;
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grid_coord.grid_index = grid_index;
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grid_coord.u = u;
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grid_coord.v = v;
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ReshapeGridElement grid_element = multires_reshape_grid_element_for_grid_coord(
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reshape_context, &grid_coord);
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BLI_assert(grid_element.displacement != NULL);
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memcpy(grid_element.displacement,
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CCG_grid_elem_co(&reshape_level_key, ccg_grid, x, y),
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sizeof(float) * 3);
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if (reshape_level_key.has_mask) {
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BLI_assert(grid_element.mask != NULL);
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*grid_element.mask = *CCG_grid_elem_mask(&reshape_level_key, ccg_grid, x, y);
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}
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}
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}
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}
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return true;
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}
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