(02-28-2012, 03:53 PM)Peardian Wrote: Ah, there's the problem. Irfranview doesn't keep the alpha channel with converting TGAs. You'll have to use an image editing program like Photoshop or GIMP to do it. It's really unfortunate that there aren't more competent TGA converters/viewers for Windows out there.
I've been using the free version of Pearl Mountain Image Resizer, which supports batch converting of TGA to PNG files via folder.
Seems to preserve alphas, too.
http://www.mediafire.com/?oe2iadzm8bdtdg9
From TGA...
...to PNG with alpha.