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I can find a lot of examples about tools for creating a sky using the User Interface (https://docs.blender.org/manual/en/latest/render/shader_nodes/textures/sky.html), but the same cannot be said for the Python API. The only examples I found use the obsolete

bpy.context.scene.world.use_sky_paper

Which does not exist anymore. Does anyone know how this can be replicated from Python?

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  • $\begingroup$ I think so… I messed with material nodes a bit, so it shouldn’t be to different for the world. Try bpy.data.worlds[0].node_tree.nodes… $\endgroup$
    – TheLabCat
    Commented May 19, 2021 at 1:52

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Try this:

import bpy

sky_texture = bpy.context.scene.world.node_tree.nodes.new("ShaderNodeTexSky")
bg = bpy.context.scene.world.node_tree.nodes["Background"]
bpy.context.scene.world.node_tree.links.new(bg.inputs["Color"], sky_texture.outputs["Color"])

You can then tweak the options like this:

sky_texture.sky_type = 'HOSEK_WILKIE' # or 'PREETHAM'
sky_texture.turbidity = 2.0
sky_texture.ground_albedo = 0.4
sky_texture.sun_direction = mathutils.Vector((1.0, 0.0, 1.0))  # add `import mathutils` at the beginning of the script
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  • $\begingroup$ It works, thanks! $\endgroup$
    – SIMONE BENATTI
    Commented May 19, 2021 at 8:15
  • $\begingroup$ Glad I could help! $\endgroup$
    – Dale Cieslak
    Commented May 20, 2021 at 1:23

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