Why are there default materials in blank projects (<none>)?

[Haider_of_Sweden]

Anyone who knows the reasons why there are default materials in Revit when you create a project and using <none> under template.

There are still a bunch of materials, most of them just gray anyway.

Any good or useful reason for that?

[barthbradley]

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[barthbradley]

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[syman2000]

I always wonder that myself. You can purge them to get rid of them. Some of the material ties to analytical category, phasing or view type poche color.

[Haider_of_Sweden]

I cleared out all the materials under Object Styles, both under Model Objects and Analytic Model Objects.

Of course, I also expanded all categories to see that no sub-category had any materials assigned to them.

Still, I got those left - anyone up to some detective work?

[barthbradley]

I'm not sure what the game plan is here.  Do you want to remove all the ADSKLIB's entirely - including the AEC. You would have no access to Materials then.  It would be dead.  

[barthbradley]

...or are you wanting this? 

[syman2000]

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@Haider_of_Sweden wrote:

I cleared out all the materials under Object Styles, both under Model Objects and Analytic Model Objects.

Of course, I also expanded all categories to see that no sub-category had any materials assigned to them.

Still, I got those left - anyone up to some detective work?

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Usually if I want to force to delete the material, I would go to material browser and press the DEL button. It will clear out all the material and change all material to by category.

[Haider_of_Sweden]

@barthbradley & @syman2000 

Yes, I know that I could just delete them. But I was curious why they are there.

This I discovered with the help of Snoop-addin:

so what is left are these:

Again - this is just for the sake of curiosity 😄

[syman2000]

I assume these were built in since the early days of Revit. I remember Revit used to have an Accurender render engine at one point and there was material with a path name plaster all over the material name. My guess is the Autodesk dev team thinks if the system ain't broken why temper with it.