diff options
Diffstat (limited to 'source/blender/blenkernel/intern/subdiv_mesh.c')
| -rw-r--r-- | source/blender/blenkernel/intern/subdiv_mesh.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/subdiv_mesh.c b/source/blender/blenkernel/intern/subdiv_mesh.c index 83427adcb43..e846dc2d807 100644 --- a/source/blender/blenkernel/intern/subdiv_mesh.c +++ b/source/blender/blenkernel/intern/subdiv_mesh.c @@ -44,6 +44,9 @@ typedef struct SubdivMeshContext { /* UV layers interpolation. */ int num_uv_layers; MLoopUV *uv_layers[MAX_MTFACE]; + /* Orco interpolation. */ + float (*orco)[3]; + float (*cloth_orco)[3]; /* Per-subdivided vertex counter of averaged values. */ int *accumulated_counters; bool have_displacement; @@ -69,6 +72,9 @@ static void subdiv_mesh_ctx_cache_custom_data_layers(SubdivMeshContext *ctx) ctx->poly_origindex = CustomData_get_layer(&subdiv_mesh->pdata, CD_ORIGINDEX); /* UV layers interpolation. */ subdiv_mesh_ctx_cache_uv_layers(ctx); + /* Orco interpolation. */ + ctx->orco = CustomData_get_layer(&subdiv_mesh->vdata, CD_ORCO); + ctx->cloth_orco = CustomData_get_layer(&subdiv_mesh->vdata, CD_CLOTH_ORCO); } static void subdiv_mesh_prepare_accumulator(SubdivMeshContext *ctx, int num_vertices) @@ -417,6 +423,34 @@ static void subdiv_mesh_tls_free(void *tls_v) /** \} */ /* -------------------------------------------------------------------- */ +/** \name Evaluation helper functions + * \{ */ + +static void subdiv_vertex_orco_evaluate(const SubdivMeshContext *ctx, + const int ptex_face_index, + const float u, + const float v, + const int subdiv_vertex_index) +{ + if (ctx->orco || ctx->cloth_orco) { + float vertex_data[6]; + BKE_subdiv_eval_vertex_data(ctx->subdiv, ptex_face_index, u, v, vertex_data); + + if (ctx->orco) { + copy_v3_v3(ctx->orco[subdiv_vertex_index], vertex_data); + if (ctx->cloth_orco) { + copy_v3_v3(ctx->orco[subdiv_vertex_index], vertex_data + 3); + } + } + else if (ctx->cloth_orco) { + copy_v3_v3(ctx->orco[subdiv_vertex_index], vertex_data); + } + } +} + +/** \} */ + +/* -------------------------------------------------------------------- */ /** \name Accumulation helpers * \{ */ @@ -530,6 +564,8 @@ static void evaluate_vertex_and_apply_displacement_copy(const SubdivMeshContext BKE_subdiv_eval_limit_point(ctx->subdiv, ptex_face_index, u, v, subdiv_vert->co); /* Apply displacement. */ add_v3_v3(subdiv_vert->co, D); + /* Evaluate undeformed texture coordinate. */ + subdiv_vertex_orco_evaluate(ctx, ptex_face_index, u, v, subdiv_vertex_index); /* Remove facedot flag. This can happen if there is more than one subsurf modifier. */ BLI_BITMAP_DISABLE(ctx->subdiv_mesh->runtime.subsurf_face_dot_tags, subdiv_vertex_index); } @@ -556,6 +592,8 @@ static void evaluate_vertex_and_apply_displacement_interpolate( BKE_subdiv_eval_limit_point(ctx->subdiv, ptex_face_index, u, v, subdiv_vert->co); /* Apply displacement. */ add_v3_v3(subdiv_vert->co, D); + /* Evaluate undeformed texture coordinate. */ + subdiv_vertex_orco_evaluate(ctx, ptex_face_index, u, v, subdiv_vertex_index); } static void subdiv_mesh_vertex_displacement_every_corner_or_edge( @@ -723,6 +761,7 @@ static void subdiv_mesh_vertex_inner(const SubdivForeachContext *foreach_context subdiv_vertex_data_interpolate(ctx, subdiv_vert, &tls->vertex_interpolation, u, v); BKE_subdiv_eval_final_point(subdiv, ptex_face_index, u, v, subdiv_vert->co); subdiv_mesh_tag_center_vertex(coarse_poly, subdiv_vertex_index, u, v, subdiv_mesh); + subdiv_vertex_orco_evaluate(ctx, ptex_face_index, u, v, subdiv_vertex_index); } /** \} */ |