DDS Problem: erased area is not transparent

[DDSnoob]

hello

 

I edited some texture DDS files for my game

 

just as title, I erased some part of texture cuz wanted it to be transparent

 

and it worked for some texture files but other files got problems 

 

I selected area, pressed Delete, white and grey checkerboard appeared,No other background layer presents,so I saved it as DDS DXT5 and erased area turns into white

 

 

 

what have I done wrong and what should I do?

Edited August 28, 2017 by DDSnoob

[MJW]

Any format that supports an alpha channel should save the area as transparent, and DDS DX5 supports alpha, as far as I could tell with a quick search.

 

What do you mean by saying the transparent area "turns into white"?  Do you mean when you later used the file in another program it was white instead of transparent, or do you mean it was white when you reloaded the saved file into PDN, or do you mean after you did the save, the formerly transparent region in the original image was white? If it was white when you tried to use it in a different program, is it white when you reopen the image in PDN?

 

EDIT: My version of PDN offers to save files as DDS, and I don't have a DDS FileType plugin, so I assume that means DDS files are a native file type and not done by a plugin.

[BoltBait]

56 minutes ago, MJW said:

I assume that means DDS files are a native file type and not done by a plugin.

 

True as of paint.net version 3.10.

[DDSnoob]

1 hour ago, MJW said:

Any format that supports an alpha channel should save the area as transparent, and DDS DX5 supports alpha, as far as I could tell with a quick search.

 

What do you mean by saying the transparent area "turns into white"?  Do you mean when you later used the file in another program it was white instead of transparent, or do you mean it was white when you reloaded the saved file into PDN, or do you mean after you did the save, the formerly transparent region in the original image was white? If it was white when you tried to use it in a different program, is it white when you reopen the image in PDN?

 

When I use that texture DDS image in game

 

And I think I found the reason that makes it not transparent. 

 

 

Thanks for help

Edited August 29, 2017 by DDSnoob