Tool Yet another PNG to XNB converter

psmith

psmith

Terrarian
It was fun to create my own png_to_xnb variant. I used an early version of this to create my texture pack. Maybe someone will also find it useful.

Source is here (C#): https://github.com/sullerandras/png_to_xnb
Precompiled exe (17 kB): https://github.com/sullerandras/png_to_xnb/raw/master/png_to_xnb.exe

It is a standalone exe, it should work on any Windows 7 or newer without installing .NET or XNA frameworks. On Mac you need wine or mono to run it.
Note that it supports batch converting via command line arguments. Start it without any command line arguments (e.g. double clicking it) to see a basic GUI.

Also note that the program only handles 8 bits per pixel PNG files. In other words: 16 bits / pixel images will not work properly, you need to convert them to 8 bpp.

This is my first C# project. I used Mono (Xamarin Studio) on a Mac for development.
 
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I don't know about yet another......this is the first standalone converter I've seen that converts from PNG to XNB! (I gave up on my own when I couldn't find documentation on the file type.)

I just tried it out real quick, and it looks like transparency has been reduced to white. Is this expected?

Anyway, great job, the whole "install all this software that is no longer supported just to convert some images" hurdle is now gone.
 
Good job on this dude!
 
jopojelly said:
I don't know about yet another......this is the first standalone converter I've seen that converts from PNG to XNB! (I gave up on my own when I couldn't find documentation on the file type.)

I just tried it out real quick, and it looks like transparency has been reduced to white. Is this expected?

Anyway, great job, the whole "install all this software that is no longer supported just to convert some images" hurdle is now gone.
Click to expand...

Thanks. I think I found the format specification here: http://xbox.create.msdn.com/en-US/sample/xnb_format (a really lame looking site, but the zip contains the documentation I was working from (in .docx format! lol! not pdf)).

The transparency should be ok. This program generates the exact same output as the earlier version I used to generate my HD textures (on Mac using wine. On Windows I haven't tested extensively, but I suppose it works the same).
 
Thanks for the program
 
I'm getting this once I can use my own computer. Here, take my imaginary money: $ , because xnb files are very annoying to make.
 
It seems like the converter doesn't retain the transparancy of my pngs
 

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mrnoobman said:
It seems like the converter doesn't retain the transparancy of my pngs
Click to expand...
Can you send me the png file which is wrong?
In the converter I used the .NET Bitmap class, which should handle 8 bit per pixel RGBA png files. If you use 16 bit / channel, it will probably not work.
 
psmith said:
Can you send me the png file which is wrong?
In the converter I used the .NET Bitmap class, which should handle 8 bit per pixel RGBA png files. If you use 16 bit / channel, it will probably not work.
Click to expand...

Thanks for the info. I saved my PNGs with @ 8 bits and it works perfectly :D
 
Huh, I open it and it instantly closes. Weird. Would be really helpful if it worked xD

Help would be appreciated :D
 
How exactly do I use this?
It closes out when I click the exe
 
Eli10293 said:
How exactly do I use this?
It closes out when I click the exe
Click to expand...
It is a command line application, you need to start it from CMD.EXE. If you double click on the exe it will close itself immediately because there are no command line arguments passed in.
 
psmith said:
It was fun to create my own png_to_xnb variant. I used an early version of this to create my texture pack. Maybe someone will also find it useful.

Source is here (C#): https://github.com/sullerandras/png_to_xnb
Precompiled exe (12 kB): https://github.com/sullerandras/png_to_xnb/raw/master/png_to_xnb.exe

It is a standalone exe, it should work on any Windows 7 or newer without installing .NET or XNA frameworks. On Mac you need wine or mono to run it.
Note that this is a command line program. No GUI.
Also note that the program only handles 8 bits per pixel PNG files. In other words: 16 bits / pixel images will not work properly, you need to convert them to 8 bpp.

This is my first C# project. I used Mono (Xamarin Studio) on a Mac for development.
Click to expand...
You should try adding a tutorial because this gets a little confusing
Edit: It would also be cool if you could drag a png file onto the exe to convert it
 
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Eli10293 said:
You should try adding a tutorial because this gets a little confusing
Edit: It would also be cool if you could drag a png file onto the exe to convert it
Click to expand...
Updated the program, added a very basic GUI and "dragging the file onto the exe will convert the file" should also work.
 
For some reason my transparency did not save when I put the xnb in the content folder and loaded the game :/
 
Eli10293 said:
For some reason my transparency did not save when I put the xnb in the content folder and loaded the game :/
Click to expand...
Most likely your PNG is using 16 bits per pixel. Try to save it as 8 BPP and check if transparency works.
 
psmith said:
Most likely your PNG is using 16 bits per pixel. Try to save it as 8 BPP and check if transparency works.
Click to expand...
How exactly would I save it as 8 BPP using Paint.NET
 
I figured it out :P
Open the png file with paint.net
save it as a gif
rename the gif to a png
done
 
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