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About bat files


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4 replies to this topic

#1 belfegor   Crossbones+   -  Reputation: 2788

Posted 20 December 2012 - 12:09 PM

I downloaded nvidia texture tools command line utilites to be able to convert some textures to "bump maps". The problem is that it will take to long to do it by hand for all images, so i tried to automate it with bat, but my knowledge for command line sintaks is limited:

for %%X in (*.dds) do nvcompress -tonormal %%X %%X_bump.dds
Last parameter is out file name.

If i have input images in that directory:
Image1.dds
Image2.dds
Image3.dds

Output will be:
Image1.dds_bump.dds
Image2.dds_bump.dds
Image3.dds_bump.dds

But i want to remove first extension so that output would be:
Image1_bump.dds
Image2_bump.dds
Image3_bump.dds

Help.

Thank you for your time.

EDIT: Solved. Last param should be:
%%~nX_bump.dds

Edited by belfegor, 20 December 2012 - 12:34 PM.


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#2 fastcall22   Crossbones+   -  Reputation: 5427

Posted 20 December 2012 - 01:04 PM

Windows Vista or later? Learn and use PowerShell. It's seriously amazing:
get-childitem '*.dds' | foreach-object {
    & .\nvcompress -tonormal $_.Name $_.Name "$($_.Name)_bump.dds"
}

Works with .NET, so you can load almost every assembly and directly work with it in PowerShell.

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#3 tstrimple   Prime Members   -  Reputation: 1753

Posted 20 December 2012 - 03:20 PM

Windows Vista or later? Learn and use PowerShell. It's seriously amazing:


And seriously verbose! It's very painful to use from the command line, but it's great for scripting tasks.

#4 fastcall22   Crossbones+   -  Reputation: 5427

Posted 20 December 2012 - 04:18 PM

And seriously verbose! It's very painful to use from the command line, but it's great for scripting tasks.

It doesn't need to be verbose; that's what aliases are for:
ls *.dds |%{$a=$_.Name;&.\nvcompress -tonormal $a $a "$($_.FullName)_bump.dds")}

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#5 Sik_the_hedgehog   Crossbones+   -  Reputation: 2144

Posted 20 December 2012 - 05:28 PM

Ow, that reminds me of Unix shells (though those are still worse when it comes to legibility).
Don't pay much attention to "the hedgehog" in my nick, it's just because "Sik" was already taken =/ By the way, Sik is pronounced like seek, not like sick.




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