1 files changed, 91 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc b/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc
new file mode 100644
index 00000000000..9aaccb7d805
--- /dev/null
+++ b/source/blender/nodes/geometry/nodes/node_geo_mesh_primitive_ico_sphere.cc
@@ -0,0 +1,91 @@
+/*
+ * 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_ico_sphere_in[] = {
+    {SOCK_FLOAT, N_("Radius"), 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, FLT_MAX, PROP_DISTANCE},
+    {SOCK_INT, N_("Subdivisions"), 1, 0, 0, 0, 0, 7},
+    {SOCK_VECTOR, N_("Location"), 0.0f, 0.0f, 0.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_TRANSLATION},
+    {SOCK_VECTOR, N_("Rotation"), 0.0f, 0.0f, 0.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_EULER},
+    {-1, ""},
+};
+
+static bNodeSocketTemplate geo_node_mesh_primitive_ico_sphere_out[] = {
+    {SOCK_GEOMETRY, N_("Geometry")},
+    {-1, ""},
+};
+
+namespace blender::nodes {
+
+static Mesh *create_ico_sphere_mesh(const float3 location,
+                                    const float3 rotation,
+                                    const int subdivisions,
+                                    const float radius)
+{
+  float4x4 transform;
+  loc_eul_size_to_mat4(transform.values, location, rotation, float3(1.0f));
+
+  const BMeshCreateParams bmcp = {true};
+  const BMAllocTemplate allocsize = {0, 0, 0, 0};
+  BMesh *bm = BM_mesh_create(&allocsize, &bmcp);
+
+  BMO_op_callf(bm,
+               BMO_FLAG_DEFAULTS,
+               "create_icosphere subdivisions=%i diameter=%f matrix=%m4 calc_uvs=%b",
+               subdivisions,
+               std::abs(radius),
+               transform.values,
+               true);
+
+  Mesh *mesh = (Mesh *)BKE_id_new_nomain(ID_ME, nullptr);
+  BM_mesh_bm_to_me_for_eval(bm, mesh, nullptr);
+  BM_mesh_free(bm);
+
+  return mesh;
+}
+
+static void geo_node_mesh_primitive_ico_sphere_exec(GeoNodeExecParams params)
+{
+  const int subdivisions = std::min(params.extract_input<int>("Subdivisions"), 10);
+  const float radius = params.extract_input<float>("Radius");
+  const float3 location = params.extract_input<float3>("Location");
+  const float3 rotation = params.extract_input<float3>("Rotation");
+
+  Mesh *mesh = create_ico_sphere_mesh(location, rotation, subdivisions, radius);
+  params.set_output("Geometry", GeometrySet::create_with_mesh(mesh));
+}
+
+}  // namespace blender::nodes
+
+void register_node_type_geo_mesh_primitive_ico_sphere()
+{
+  static bNodeType ntype;
+
+  geo_node_type_base(
+      &ntype, GEO_NODE_MESH_PRIMITIVE_ICO_SPHERE, "Ico Sphere", NODE_CLASS_GEOMETRY, 0);
+  node_type_socket_templates(
+      &ntype, geo_node_mesh_primitive_ico_sphere_in, geo_node_mesh_primitive_ico_sphere_out);
+  ntype.geometry_node_execute = blender::nodes::geo_node_mesh_primitive_ico_sphere_exec;
+  nodeRegisterType(&ntype);
+}