设置复制的基本体uv球体的颜色

Question

我正在创建一个球体的多个副本，但我想更改每个球体的颜色。这是我用来创建初始球体并复制它的代码

bpy.ops.object.select_all(action='DESELECT')
bpy.ops.mesh.primitive_uv_sphere_add(size=radius)
sphere = bpy.context.object
def makeSphere(x,y,z,r,g,b):
ob = sphere.copy()
ob.location.x = x
ob.location.y = y
ob.location.z = z
# Attempt to change sphere's color
activeObject = bpy.context.active_object 
mat = bpy.data.materials.new(name="MaterialName")
activeObject.data.materials.append(mat) 
bpy.context.object.active_material.diffuse_color = (r/255,g/255,b/255) 
bpy.context.scene.objects.link(ob)

脚本编译和运行良好，但球体的颜色不会改变。

Answer 1

有两件事，bpy.context.object和bpy.context.active_object是同一个对象。您复制的是对象，而不是具有材质的对象数据，这意味着您将每个新材质附加到相同的对象数据中，但第一种材质是唯一使用的材质。

bpy.ops.object.select_all(action='DESELECT')
bpy.ops.mesh.primitive_uv_sphere_add(size=.3)
sphere = bpy.context.object
def makeSphere(x,y,z,r,g,b):
ob = sphere.copy()
ob.data = sphere.data.copy()
ob.location.x = x
ob.location.y = y
ob.location.z = z
# Attempt to change sphere's color
mat = bpy.data.materials.new(name="MaterialName")
mat.diffuse_color = (r/255,g/255,b/255)
ob.active_material = mat
bpy.context.scene.objects.link(ob)