I'm trying to make a street lamp, so i parented a light source (an area light) to the lamp object. The problem is when I add an array modifier to the lamp it only applies on the lamp mesh leaving me with only one light source. Is there a way to make it applicable to both the object and the light.


enter image description here


I have also been trying to add lamp posts along a road path via blender scripting, and here's the solution I applied:

  1. Add a lamp post mesh which will become the parent of your light source (If your mesh consists of multiple parts, join them by 'Boolean Modifier > Union')
  2. Add array modifier (and curve modifier if your road path is a curve) to your lamp post object to copy it along the road, then apply the modifiers
  3. Apply 'Seperate > By Loose Parts' to your lamp post object to get multiple objects instead of one
  4. For every lamp post, add a light source and make the lamp post the parent of light source

You can see my approach in code down below:

bpy.ops.import_mesh.stl(filepath=os.path.join(os.path.dirname(bpy.data.filepath), "models/lamp.stl"))
lamp_ob = bpy.context.selected_objects[0]

if laneCount == 3:
    lamp_ob.location = (0,4.2,0)
    lamp_ob.location = (0,3.2,0)

lamp_array_mod = lamp_ob.modifiers.new("LampArray", 'ARRAY')
lamp_array_mod.fit_type = "FIT_CURVE"
lamp_array_mod.curve = road_curve
lamp_array_mod.constant_offset_displace = (15,0,0)
lamp_array_mod.use_constant_offset = True

lamp_curve_mod = lamp_ob.modifiers.new("LampCurve", 'CURVE')
lamp_curve_mod.object = road_curve

for modifier in lamp_ob.modifiers:


for index, obj in enumerate(light_collection.all_objects):
    bpy.ops.object.light_add(type='POINT', radius=2.0, location=(0,-0.25,1.25))
    light_ob = bpy.context.selected_objects[0]
    light_ob.name = "Light" + str(index)
    light_ob.parent = obj
    light_ob.data.energy = 500
    light_ob.data.specular_factor = 10  

This may not be the best scripting practice and there are some lines not related to the solution, so anyone can reach me out if any further explanation is needed :)

Footnote: I use .stl models since texture is not required for models in my case.

New contributor
Sefa Şenlik is a new contributor to this site. Take care in asking for clarification, commenting, and answering. Check out our Code of Conduct.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.