From c49befa43288730538d82f709b05dfd08c40e562 Mon Sep 17 00:00:00 2001 From: Alexander Gavrilov Date: Mon, 11 Jul 2022 18:36:55 +0300 Subject: Rigify: fix T95864 - inconsistent bone roll in the wolf metarig. Edit mode represents bone orientation via their head and tail locations, plus a roll value. This math has a singularity in the -Y direction, resulting in instability and discontinuity for bones exactly aligned to the Y axis (the tail flips the deform bones, so +Y is also bad). The only reliable way to avoid problems is to un-align the bones via very small offsets in the Z direction. --- rigify/metarigs/Animals/wolf.py | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'rigify/metarigs/Animals/wolf.py') diff --git a/rigify/metarigs/Animals/wolf.py b/rigify/metarigs/Animals/wolf.py index a2ade910..87d74c87 100644 --- a/rigify/metarigs/Animals/wolf.py +++ b/rigify/metarigs/Animals/wolf.py @@ -169,7 +169,7 @@ def create(obj): bone = arm.edit_bones.new('spine.004') bone.head = 0.0000, 0.4085, 0.7928 - bone.tail = 0.0000, 0.2416, 0.7928 + bone.tail = 0.0000, 0.2416, 0.7927 bone.roll = 0.0000 bone.use_connect = False bones['spine.004'] = bone.name @@ -181,7 +181,7 @@ def create(obj): bone.parent = arm.edit_bones[bones['spine.004']] bones['spine.003'] = bone.name bone = arm.edit_bones.new('spine.005') - bone.head = 0.0000, 0.2416, 0.7928 + bone.head = 0.0000, 0.2416, 0.7927 bone.tail = 0.0000, 0.1202, 0.7773 bone.roll = 0.0000 bone.use_connect = True @@ -189,14 +189,14 @@ def create(obj): bones['spine.005'] = bone.name bone = arm.edit_bones.new('spine.002') bone.head = 0.0000, 0.5555, 0.7567 - bone.tail = 0.0000, 0.7816, 0.7412 + bone.tail = 0.0000, 0.7816, 0.7411 bone.roll = 0.0000 bone.use_connect = True bone.parent = arm.edit_bones[bones['spine.003']] bones['spine.002'] = bone.name bone = arm.edit_bones.new('spine.006') bone.head = 0.0000, 0.1202, 0.7773 - bone.tail = 0.0000, 0.0096, 0.7773 + bone.tail = 0.0000, 0.0096, 0.7772 bone.roll = 0.0000 bone.use_connect = True bone.parent = arm.edit_bones[bones['spine.005']] @@ -230,14 +230,14 @@ def create(obj): bone.parent = arm.edit_bones[bones['spine.005']] bones['thigh.R'] = bone.name bone = arm.edit_bones.new('spine.001') - bone.head = 0.0000, 0.7816, 0.7412 + bone.head = 0.0000, 0.7816, 0.7411 bone.tail = 0.0000, 0.9624, 0.7412 bone.roll = 0.0000 bone.use_connect = True bone.parent = arm.edit_bones[bones['spine.002']] bones['spine.001'] = bone.name bone = arm.edit_bones.new('spine.007') - bone.head = 0.0000, 0.0096, 0.7773 + bone.head = 0.0000, 0.0096, 0.7772 bone.tail = 0.0000, -0.0980, 0.7945 bone.roll = 0.0000 bone.use_connect = True -- cgit v1.2.3