From ee68a17611920264c4353a1fdc79f80be08fc710 Mon Sep 17 00:00:00 2001
From: Germano Cavalcante <germano.costa@ig.com.br>
Date: Fri, 18 Oct 2019 14:22:48 -0300
Subject: [PATCH] Fix T70899: Looptools circle fails when new plane created
aligned to view
loop tools uses a custom matrix inverse function with high precision.
So this precision has to extend to other parts.
---
mesh_looptools.py | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/mesh_looptools.py b/mesh_looptools.py
index 41c1be0a4..67855477c 100644
--- a/mesh_looptools.py
+++ b/mesh_looptools.py
@@ -19,7 +19,7 @@
bl_info = {
"name": "LoopTools",
"author": "Bart Crouch",
- "version": (4, 6, 7),
+ "version": (4, 6, 8),
"blender": (2, 80, 0),
"location": "View3D > Sidebar > Edit Tab / Edit Mode Context Menu",
"warning": "",
@@ -290,8 +290,10 @@ def calculate_plane(bm_mod, loop, method="best_fit", object=False):
for i in range(itermax):
vec = vec2
vec2 = mat @ vec
- if vec2.length != 0:
- vec2 /= vec2.length
+ # Calculate length with double precision to avoid problems with `inf`
+ vec2_length = math.sqrt(vec2[0] ** 2 + vec2[1] ** 2 + vec2[2] ** 2)
+ if vec2_length != 0:
+ vec2 /= vec2_length
if vec2 == vec:
break
if vec2.length == 0:
--
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