GLTF Blende export nodes

gltf_export_nodes.py

import bpy

# User variables
UV_MAP_NAME = "BAKETOOL_Job 1"
IMAGE_NAME = "Default_albedo.jpg"


# Gloabls
gltf_settings_node = bpy.data.node_groups['glTF Settings']
y = 2000


selected_objects = bpy.context.selected_objects


for so in selected_objects:
    for ms in so.material_slots:
        material_name = ms.name
        material = bpy.data.materials[material_name]
        node_tree = material.node_tree
        nodes = node_tree.nodes
        
        # Create new UV map node
        uv_map = nodes.new("ShaderNodeUVMap")
        uv_map.uv_map = UV_MAP_NAME
        uv_map.location = (-200, y)

        # Create new Image Texture node
        tex_image = nodes.new("ShaderNodeTexImage")
        tex_image.location = (0, y)
        image_idx = bpy.data.images.find(IMAGE_NAME)
        tex_image.image = bpy.data.images[image_idx]
        # Create new Shader node group
        group = nodes.new("ShaderNodeGroup")
        group.node_tree = gltf_settings_node
        group.location = (300, y)

        # Create links
        node_tree.links.new(tex_image.inputs["Vector"], uv_map.outputs["UV"])
        node_tree.links.new(group.inputs["Occlusion"], tex_image.outputs["Color"])