Sculpt: Expose the functions to create and init a SculptClothSimulation

This will be used for new features like supporting cloth deformation in
other brushes and tools outside of the cloth brush code.
No functional changes.

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D8602

1 files changed, 24 insertions, 0 deletions

diff --git a/source/blender/editors/sculpt_paint/sculpt_intern.h b/source/blender/editors/sculpt_paint/sculpt_intern.h
index ee0eaeb28f3..4ac7c79e839 100644
--- a/source/blender/editors/sculpt_paint/sculpt_intern.h
+++ b/source/blender/editors/sculpt_paint/sculpt_intern.h
@@ -352,6 +352,30 @@ void SCULPT_do_cloth_brush(struct Sculpt *sd,
                            int totnode);
 void SCULPT_cloth_simulation_free(struct SculptClothSimulation *cloth_sim);
 
+struct SculptClothSimulation *SCULPT_cloth_brush_simulation_create(struct SculptSession *ss,
+                                                                   struct Brush *brush,
+                                                                   const float cloth_mass,
+                                                                   const float cloth_damping,
+                                                                   const bool use_collisions);
+void SCULPT_cloth_brush_simulation_init(struct SculptSession *ss,
+                                        struct SculptClothSimulation *cloth_sim);
+void SCULPT_cloth_brush_store_simulation_state(struct SculptSession *ss,
+                                               struct SculptClothSimulation *cloth_sim);
+
+void SCULPT_cloth_brush_do_simulation_step(struct Sculpt *sd,
+                                           struct Object *ob,
+                                           struct SculptClothSimulation *cloth_sim,
+                                           struct PBVHNode **nodes,
+                                           int totnode);
+
+void SCULPT_cloth_brush_build_nodes_constraints(struct Sculpt *sd,
+                                                struct Object *ob,
+                                                struct PBVHNode **nodes,
+                                                int totnode,
+                                                struct SculptClothSimulation *cloth_sim,
+                                                float initial_location[3],
+                                                const float radius);
+
 void SCULPT_cloth_simulation_limits_draw(const uint gpuattr,
                                          const struct Brush *brush,
                                          const float location[3],