Why is single Principled, not really " single "

[bouich jules]

Hello,

I just wondering why is a simple single principled import for materials, still not considered as simple or single:

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here is an exemple, a simple principled should be image texture -) principled bdsf -) output ( very easy)

and not a lot of other coordinates, because for people who dont use blender we dont really need them and we have to manually delete them, we just want simple stuff and we do the shading in our game engine, those coordinate and other stuff they can be included in the extended principled but not the single.

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[Alessandro Padovani]

To get that type of “simple shader“ you have to bake the textures, then after baking you can use a single image plugged to principled. This is not actually supported you have to do it by hand. There’s plenty of tutorials how to bake textures in blender.

The single principled option is actually poor in design since it just strips the extras from extended principled, so it’s more a simplification for people who want to edit their own materials than a “ready to use” shader. It is intended to be used with “unused textures“ in global settings. This is not a bug it works as intended.

[bouich jules]

Can it be supported as an enhancement?

[bouich jules]

import bpy

# Specify the name of your object here
obj_name = 'YourObjectName'

# Get the object
obj = bpy.data.objects[obj_name]

# For each material of the object, remove all nodes except for Principled BSDF, Material Output, and Image Texture
for mat in obj.data.materials:
    if mat.use_nodes:
        nodes = mat.node_tree.nodes
        links = mat.node_tree.links

        # Find the Principled BSDF, Material Output, and the first Image Texture nodes
        principled_bsdf = None
        material_output = None
        image_texture = None
        for node in nodes:
            if node.type == 'BSDF_PRINCIPLED':
                principled_bsdf = node
            elif node.type == 'OUTPUT_MATERIAL':
                material_output = node
            elif node.type == 'TEX_IMAGE':
                image_texture = node

        # Clear all nodes except the ones we found
        for node in nodes:
            if node != principled_bsdf and node != material_output and node != image_texture:
                nodes.remove(node)

        # Connect Image Texture to Principled BSDF and Principled BSDF to Material Output
        if image_texture and principled_bsdf and material_output:
            links.new(image_texture.outputs['Color'], principled_bsdf.inputs['Base Color'])
            links.new(principled_bsdf.outputs['BSDF'], material_output.inputs['Surface'])

well it works with this script, but no baking.

i will see if we can automatize the baking

[Alessandro Padovani]

The addon is an importer for daz, not a baking addon. There’s already plenty of baking addons around, if you don’t want to do it manually.

https://b3dhub.gumroad.com/l/quick-baker

[bouich jules]

thank you