python - 无法完全取消选择 Blender 中的所有对象(使用脚本或键 A)

Question

我有一根长管，上面有几个垂直于管表面的微小圆柱体贴片。我一直在尝试编写一个脚本，使用 bool 修饰符将所有内容组合在一起，然后移除小圆柱体，以便只有一个网格由带有小圆柱体的管组成(用于 future 的 FEA)。创建这些圆柱体后，我保存了这个 blender 文件，最后一个圆柱体处于事件状态。之后，无论我做什么，我似乎都无法取消选择最后一个圆柱体(如图所示:i can't seem to get rid of the orange dot, which i thought it was fine but it weren't)。因此，当我尝试运行以下代码时:

import bpy  
import bmesh
import mathutils 

bpy.ops.object.select_all(action='DESELECT')

# tried to rename the first cylinder, but the last cylinder was renamed instead
bpy.ops.object.select_pattern(pattern = 'Cylinder')
bpy.context.object.data.name = 'Cylinder.000'

bpy.ops.object.select_all(action='DESELECT')
bpy.ops.object.select_pattern(pattern = 'Cylinder.000')

# tried to remesh the first cylinder, but the last one was remeshed instead
bpy.ops.object.modifier_add(type='REMESH')
bpy.context.object.modifiers["Remesh"].scale = 0.5
bpy.ops.object.modifier_apply(apply_as='DATA', modifier="Remesh")

bpy.ops.object.select_all(action='DESELECT')
bpy.ops.object.select_pattern(pattern = 'tube')

# tried to combine the first cylinder and the tube, but two cylinders were combined instead
bpy.ops.object.modifier_add(type='BOOLEAN')
bpy.context.object.modifiers["Boolean"].object = bpy.data.objects['Cylinder.000']   
bpy.context.object.modifiers["Boolean"].operation = 'UNION'
bpy.ops.object.modifier_apply(apply_as='DATA', modifier="Boolean")

# reselect the first cylinder and delete it (the only one worked!!!)
bpy.ops.object.select_all(action='DESELECT')
bpy.ops.object.select_pattern(pattern = 'Cylinder.000')
bpy.ops.object.delete()

Answer 1

这是 2.8 的更新，它减少了对选定对象的迭代。

for obj in bpy.context.selected_objects:
    obj.select_set(False)

或者你可以打电话

bpy.ops.object.select_all(action='DESELECT')