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/*
* 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.
*/
#include "DNA_mesh_types.h"
#include "BKE_lib_id.h"
#include "BKE_mesh.h"
#include "bmesh.h"
#include "node_geometry_util.hh"
static bNodeSocketTemplate geo_node_mesh_primitive_cube_in[] = {
{SOCK_FLOAT, N_("Size"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, FLT_MAX, PROP_DISTANCE},
{-1, ""},
};
static bNodeSocketTemplate geo_node_mesh_primitive_cube_out[] = {
{SOCK_GEOMETRY, N_("Geometry")},
{-1, ""},
};
namespace blender::nodes {
static Mesh *create_cube_mesh(const float size)
{
const float4x4 transform = float4x4::identity();
const BMeshCreateParams bmcp = {true};
const BMAllocTemplate allocsize = {8, 12, 24, 6};
BMesh *bm = BM_mesh_create(&allocsize, &bmcp);
BMO_op_callf(bm,
BMO_FLAG_DEFAULTS,
"create_cube matrix=%m4 size=%f calc_uvs=%b",
transform.values,
size,
true);
BMeshToMeshParams params{};
params.calc_object_remap = false;
Mesh *mesh = (Mesh *)BKE_id_new_nomain(ID_ME, nullptr);
BM_mesh_bm_to_me(nullptr, bm, mesh, ¶ms);
BM_mesh_free(bm);
return mesh;
}
static void geo_node_mesh_primitive_cube_exec(GeoNodeExecParams params)
{
const float size = params.extract_input<float>("Size");
Mesh *mesh = create_cube_mesh(size);
params.set_output("Geometry", GeometrySet::create_with_mesh(mesh));
}
} // namespace blender::nodes
void register_node_type_geo_mesh_primitive_cube()
{
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_MESH_PRIMITIVE_CUBE, "Cube", NODE_CLASS_GEOMETRY, 0);
node_type_socket_templates(
&ntype, geo_node_mesh_primitive_cube_in, geo_node_mesh_primitive_cube_out);
ntype.geometry_node_execute = blender::nodes::geo_node_mesh_primitive_cube_exec;
nodeRegisterType(&ntype);
}
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