Simulations: Add simulation node tree type

This implements a new builtin node tree type called `SimulationNodeTree`.
It is not yet embedded in the `Simulation` data block.

The node tree will initially be used for the new particle nodes system.

When the cmake option `WITH_NEW_SIMULATION_TYPE` is enabled, a new
`Simulation Editor` is shown in the editors menu (which is just a node editor).

This patch does not add entries to the Add Node menu, so it is empty.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D7287

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/node.c b/source/blender/blenkernel/intern/node.c
index c3c538f3424..3f1de388db6 100644
--- a/source/blender/blenkernel/intern/node.c
+++ b/source/blender/blenkernel/intern/node.c
@@ -67,6 +67,7 @@
 #include "NOD_common.h"
 #include "NOD_composite.h"
 #include "NOD_shader.h"
+#include "NOD_simulation.h"
 #include "NOD_socket.h"
 #include "NOD_texture.h"
 
@@ -4114,6 +4115,11 @@ static void registerTextureNodes(void)
   register_node_type_tex_proc_distnoise();
 }
 
+static void registerSimulationNodes(void)
+{
+  register_node_type_sim_group();
+}
+
 void init_nodesystem(void)
 {
   nodetreetypes_hash = BLI_ghash_str_new("nodetreetypes_hash gh");
@@ -4127,6 +4133,7 @@ void init_nodesystem(void)
   register_node_tree_type_cmp();
   register_node_tree_type_sh();
   register_node_tree_type_tex();
+  register_node_tree_type_sim();
 
   register_node_type_frame();
   register_node_type_reroute();
@@ -4136,6 +4143,7 @@ void init_nodesystem(void)
   registerCompositNodes();
   registerShaderNodes();
   registerTextureNodes();
+  registerSimulationNodes();
 }
 
 void free_nodesystem(void)