From d2de1bbd88d839d97917f142398daaa586d89b79 Mon Sep 17 00:00:00 2001
From: Mikhail Rachinskiy <mikhail.rachinskiy@gmail.com>
Date: Thu, 6 Jan 2022 20:13:57 +0400
Subject: [PATCH] PLY: add comments for vertex ID in exporter
---
io_mesh_ply/export_ply.py | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/io_mesh_ply/export_ply.py b/io_mesh_ply/export_ply.py
index 15176bedb..1a28f3cf5 100644
--- a/io_mesh_ply/export_ply.py
+++ b/io_mesh_ply/export_ply.py
@@ -96,13 +96,15 @@ def save_mesh(filepath, bm, use_ascii, use_normals, use_uv, use_color):
normal = f.normal
for loop in f.loops:
- v = v_key = loop.vert
+ v = map_id = loop.vert
if use_uv:
uv = loop[uv_lay].uv[:]
- v_key = uv
+ map_id = uv
- if (_id := ply_vert_map.get(v_key)) is not None:
+ # Identify vertex by pointer unless exporting UVs,
+ # in which case id by UV coordinate (will split edges by seams).
+ if (_id := ply_vert_map.get(map_id)) is not None:
pf.append(_id)
continue
@@ -112,7 +114,7 @@ def save_mesh(filepath, bm, use_ascii, use_normals, use_uv, use_color):
color = tuple(int(x * 255.0) for x in loop[col_lay])
ply_verts.append((v, normal, uv, color))
- ply_vert_map[v_key] = ply_vert_id
+ ply_vert_map[map_id] = ply_vert_id
pf.append(ply_vert_id)
ply_vert_id += 1
--
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