blender/blender-addons
19
43
Fork 96
Code Issues 630 Pull Requests 27 Projects 1 Releases Wiki Activity

Mesh: Update addons for auto smooth removal #104609

Merged
Hans Goudey merged 10 commits from HooglyBoogly/blender-addons:refactor-mesh-corner-normals-lazy into main 2023-10-20 16:53:48 +02:00
Conversation 7 Commits 10 Files Changed 20 +7 -4
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files
Showing only changes of commit e017fa7c54 - Show all commits

11
io_mesh_stl/blender_utils.py
View File

@ -17,10 +17,12 @@ def create_and_link_mesh(name, faces, face_nors, points, global_matrix):
mesh.from_pydata(points, [], faces) mesh.from_pydata(points, [], faces)
if face_nors: if face_nors:
# Note: we store 'temp' normals in loops, since validate() may alter final mesh, # Write imported normals to a temporary attribute so they are interpolated by #mesh.validate().
# we can only set custom lnors *after* calling it. # It's important to validate before calling #mesh.normals_split_custom_set() which expects a
# valid mesh.
lnors = tuple(chain(*chain(*zip(face_nors, face_nors, face_nors)))) lnors = tuple(chain(*chain(*zip(face_nors, face_nors, face_nors))))
mesh.loops.foreach_set("normal", lnors) mesh.attributes.new("temp_custom_normals", 'FLOAT_VECTOR', 'CORNER')
mesh.attributes["temp_custom_normals"].data.foreach_set("vector", lnors)
mesh.transform(global_matrix) mesh.transform(global_matrix)
@ -29,11 +31,12 @@ def create_and_link_mesh(name, faces, face_nors, points, global_matrix):
if face_nors: if face_nors:
clnors = array.array('f', [0.0] * (len(mesh.loops) * 3)) clnors = array.array('f', [0.0] * (len(mesh.loops) * 3))
mesh.loops.foreach_get("normal", clnors) mesh.attributes["temp_custom_normals"].data.foreach_get("vector", clnors)
mesh.polygons.foreach_set("use_smooth", [True] * len(mesh.polygons)) mesh.polygons.foreach_set("use_smooth", [True] * len(mesh.polygons))
mesh.normals_split_custom_set(tuple(zip(*(iter(clnors),) * 3))) mesh.normals_split_custom_set(tuple(zip(*(iter(clnors),) * 3)))
mesh.attributes.remove(mesh.attributes["temp_custom_normals"])
mesh.update() mesh.update()