1 files changed, 107 insertions, 0 deletions

diff --git a/intern/openvdb/openvdb_capi.h b/intern/openvdb/openvdb_capi.h
index 236bceea3e2..826481bde34 100644
--- a/intern/openvdb/openvdb_capi.h
+++ b/intern/openvdb/openvdb_capi.h
@@ -24,12 +24,80 @@
 extern "C" {
 #endif
 
+/* Level Set Filters */
+typedef enum OpenVDBLevelSet_FilterType {
+  OPENVDB_LEVELSET_FILTER_NONE = 0,
+  OPENVDB_LEVELSET_FILTER_GAUSSIAN = 1,
+  OPENVDB_LEVELSET_FILTER_MEAN = 2,
+  OPENVDB_LEVELSET_FILTER_MEDIAN = 3,
+  OPENVDB_LEVELSET_FILTER_MEAN_CURVATURE = 4,
+  OPENVDB_LEVELSET_FILTER_LAPLACIAN = 5,
+  OPENVDB_LEVELSET_FILTER_DILATE = 6,
+  OPENVDB_LEVELSET_FILTER_ERODE = 7,
+} OpenVDBLevelSet_FilterType;
+
+typedef enum OpenVDBLevelSet_FilterBias {
+  OPENVDB_LEVELSET_FIRST_BIAS = 0,
+  OPENVDB_LEVELSET_SECOND_BIAS,
+  OPENVDB_LEVELSET_THIRD_BIAS,
+  OPENVDB_LEVELSET_WENO5_BIAS,
+  OPENVDB_LEVELSET_HJWENO5_BIAS,
+} OpenVDBLevelSet_FilterBias;
+
+/* Level Set CSG Operations */
+typedef enum OpenVDBLevelSet_CSGOperation {
+  OPENVDB_LEVELSET_CSG_UNION = 0,
+  OPENVDB_LEVELSET_CSG_DIFFERENCE = 1,
+  OPENVDB_LEVELSET_CSG_INTERSECTION = 2,
+} OpenVDBLevelSet_CSGOperation;
+
+typedef enum OpenVDBLevelSet_GridSampler {
+  OPENVDB_LEVELSET_GRIDSAMPLER_NONE = 0,
+  OPENVDB_LEVELSET_GRIDSAMPLER_POINT = 1,
+  OPENVDB_LEVELSET_GRIDSAMPLER_BOX = 2,
+  OPENVDB_LEVELSET_GRIDSAMPLER_QUADRATIC = 3,
+} OpenVDBLevelSet_Gridsampler;
+
 struct OpenVDBReader;
 struct OpenVDBWriter;
+struct OpenVDBTransform;
+struct OpenVDBLevelSet;
 struct OpenVDBFloatGrid;
 struct OpenVDBIntGrid;
 struct OpenVDBVectorGrid;
 
+struct OpenVDBVolumeToMeshData {
+  int tottriangles;
+  int totquads;
+  int totvertices;
+
+  float *vertices;
+  unsigned int *quads;
+  unsigned int *triangles;
+};
+
+struct OpenVDBRemeshData {
+  float *verts;
+  unsigned int *faces;
+  int totfaces;
+  int totverts;
+
+  float *out_verts;
+  unsigned int *out_faces;
+  unsigned int *out_tris;
+  int out_totverts;
+  int out_totfaces;
+  int out_tottris;
+  int filter_type;
+  enum OpenVDBLevelSet_FilterType filter_bias;
+  enum OpenVDBLevelSet_FilterBias filter_width; /* Parameter for gaussian, median, mean*/
+
+  float voxel_size;
+  float isovalue;
+  float adaptivity;
+  int relax_disoriented_triangles;
+};
+
 int OpenVDB_getVersionHex(void);
 
 enum {
@@ -112,6 +180,45 @@ void OpenVDBReader_get_meta_mat4(struct OpenVDBReader *reader,
                                  const char *name,
                                  float value[4][4]);
 
+struct OpenVDBTransform *OpenVDBTransform_create(void);
+void OpenVDBTransform_free(struct OpenVDBTransform *transform);
+void OpenVDBTransform_create_linear_transform(struct OpenVDBTransform *transform,
+                                              double voxel_size);
+
+struct OpenVDBLevelSet *OpenVDBLevelSet_create(bool initGrid, struct OpenVDBTransform *xform);
+void OpenVDBLevelSet_free(struct OpenVDBLevelSet *level_set);
+void OpenVDBLevelSet_mesh_to_level_set(struct OpenVDBLevelSet *level_set,
+                                       const float *vertices,
+                                       const unsigned int *faces,
+                                       const unsigned int totvertices,
+                                       const unsigned int totfaces,
+                                       struct OpenVDBTransform *xform);
+void OpenVDBLevelSet_mesh_to_level_set_transform(struct OpenVDBLevelSet *level_set,
+                                                 const float *vertices,
+                                                 const unsigned int *faces,
+                                                 const unsigned int totvertices,
+                                                 const unsigned int totfaces,
+                                                 struct OpenVDBTransform *transform);
+void OpenVDBLevelSet_volume_to_mesh(struct OpenVDBLevelSet *level_set,
+                                    struct OpenVDBVolumeToMeshData *mesh,
+                                    const double isovalue,
+                                    const double adaptivity,
+                                    const bool relax_disoriented_triangles);
+void OpenVDBLevelSet_filter(struct OpenVDBLevelSet *level_set,
+                            OpenVDBLevelSet_FilterType filter_type,
+                            int width,
+                            float distance,
+                            OpenVDBLevelSet_FilterBias bias);
+void OpenVDBLevelSet_CSG_operation(struct OpenVDBLevelSet *out,
+                                   struct OpenVDBLevelSet *gridA,
+                                   struct OpenVDBLevelSet *gridB,
+                                   OpenVDBLevelSet_CSGOperation operation);
+
+struct OpenVDBLevelSet *OpenVDBLevelSet_transform_and_resample(struct OpenVDBLevelSet *level_setA,
+                                                               struct OpenVDBLevelSet *level_setB,
+                                                               char sampler,
+                                                               float isolevel);
+
 #ifdef __cplusplus
 }
 #endif