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authorHans Goudey <h.goudey@me.com>2022-09-28 22:31:32 +0300
committerHans Goudey <h.goudey@me.com>2022-09-28 22:31:32 +0300
commit25533dbe219f8bbcb3f04ffe2ff1e57599addf3f (patch)
treefd4d4260fbb807d3d0484d2c4259b43378390875 /source/blender/render
parent878dea4e0fcca68ba3ad93edeae22114e1252f9e (diff)
Mesh: Add C++ implementaiton of topology mappings
Because they are friendlier to use in C++ code than the existing mesh mapping API, these mappings from one domain to another were often reimplemented in separate files. This commit moves some basic implementations to a `mesh_topology` namespace in the existing mesh mapping header file. These is plenty of room for performance improvement here, particularly by not using an array of Vectors, but that can come later. Split from D16029
Diffstat (limited to 'source/blender/render')
-rw-r--r--source/blender/render/intern/texture_margin.cc12
1 files changed, 4 insertions, 8 deletions
diff --git a/source/blender/render/intern/texture_margin.cc b/source/blender/render/intern/texture_margin.cc
index 201908234fe..a69449d9386 100644
--- a/source/blender/render/intern/texture_margin.cc
+++ b/source/blender/render/intern/texture_margin.cc
@@ -14,6 +14,7 @@
#include "BKE_DerivedMesh.h"
#include "BKE_customdata.h"
#include "BKE_mesh.h"
+#include "BKE_mesh_mapping.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
@@ -44,7 +45,7 @@ class TextureMarginMap {
/** Maps UV-edges to their corresponding UV-edge. */
Vector<int> loop_adjacency_map_;
/** Maps UV-edges to their corresponding polygon. */
- Vector<int> loop_to_poly_map_;
+ Array<int> loop_to_poly_map_;
int w_, h_;
float uv_offset_[2];
@@ -289,13 +290,8 @@ class TextureMarginMap {
void build_tables()
{
- loop_to_poly_map_.resize(totloop_);
- for (int i = 0; i < totpoly_; i++) {
- for (int j = 0; j < mpoly_[i].totloop; j++) {
- int l = j + mpoly_[i].loopstart;
- loop_to_poly_map_[l] = i;
- }
- }
+ loop_to_poly_map_ = blender::mesh_topology::build_corner_to_poly_map({mpoly_, totpoly_},
+ totloop_);
loop_adjacency_map_.resize(totloop_, -1);