initial evaluation code

1 files changed, 22 insertions, 1 deletions

diff --git a/source/blender/nodes/geometry/nodes/node_geo_triangulate.cc b/source/blender/nodes/geometry/nodes/node_geo_triangulate.cc
index e3ece88a576..b9e53947449 100644
--- a/source/blender/nodes/geometry/nodes/node_geo_triangulate.cc
+++ b/source/blender/nodes/geometry/nodes/node_geo_triangulate.cc
@@ -14,7 +14,15 @@
  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
-#include "node_geometry_util.h"
+#include "node_geometry_util.hh"
+
+extern "C" {
+Mesh *triangulate_mesh(Mesh *mesh,
+                       const int quad_method,
+                       const int ngon_method,
+                       const int min_vertices,
+                       const int flag);
+}
 
 static bNodeSocketTemplate geo_node_triangulate_in[] = {
     {SOCK_GEOMETRY, N_("Geometry")},
@@ -26,11 +34,24 @@ static bNodeSocketTemplate geo_node_triangulate_out[] = {
     {-1, ""},
 };
 
+namespace blender::nodes {
+static void geo_triangulate_exec(bNode *UNUSED(node), GeoNodeInput input, GeoNodeOutput output)
+{
+  Geometry *geometry = input.get<GeometryP>("Geometry").p;
+  Mesh *old_mesh = geometry->extract_mesh();
+  delete geometry;
+  Mesh *new_mesh = triangulate_mesh(old_mesh, 3, 0, 4, 0);
+  Geometry *new_geometry = Geometry::from_mesh(new_mesh);
+  output.set("Geometry", GeometryP{new_geometry});
+}
+}  // namespace blender::nodes
+
 void register_node_type_geo_triangulate()
 {
   static bNodeType ntype;
 
   geo_node_type_base(&ntype, GEO_NODE_TRIANGULATE, "Triangulate", 0, 0);
   node_type_socket_templates(&ntype, geo_node_triangulate_in, geo_node_triangulate_out);
+  ntype.geometry_node_execute = blender::nodes::geo_triangulate_exec;
   nodeRegisterType(&ntype);
 }