.tga "problem"

[Monteiro]

Hi

Why do I in Paintshop pro see a .tga image like this

Image1 by José Monteiro, no Flickr

Instead of like this?

Image2 by José Monteiro, no Flickr

Can someone help me?

TKS

[migf1]

Hello, your links aren't working for me. They say "Access Denied".

[Ken Berry]

Same for me -- though there was also a button saying "Request Access" which I pressed. (I have been a long time user of Google and gmail since it first started in 2004.) I pressed that button and got a message saying a message was sent requesting access.

[Scribzy]

I can see the images. They are not displaying alpha channels correctly.
Which version of psp are you using?

[Monteiro]

Try it now.

[Monteiro]

I can see the images. They are not displaying alpha channels correctly.
Which version of psp are you using?

Corel PaintShop Pro 2018

[Monteiro]

No one?

[migf1]

No one?

Hi Monteiro,

as mentioned above, seems like an alpha channel misreading. Would it be possible for you to upload the original .tga file somewhere, so we can test it?. I do not have PSP 2018 myself, but chances are other members do. However, I could test it for you in PSP 2020, 2021 and X7.

[Monteiro]

No one?

Hi Monteiro,

as mentioned above, seems like an alpha channel misreading. Would it be possible for you to upload the original .tga file somewhere, so we can test it?. I do not have PSP 2018 myself, but chances are other members do. However, I could test it for you in PSP 2020, 2021 and X7.

Yes!

Here: https://drive.google.com/file/d/15k-ZPQ ... sp=sharing

Tks my friend for help.

[migf1]

You are very welcome!

I am not sure what is going on with that picture!

PSP X7/2020/2021, Gimp, XnViewMP, and nomacs, they all show this picture with transparency. From the static image editors/viewers I have, only Photoshop shows it without transparency.

On the other hand, every video editor/viewer I have, show the picture without transparency. These include: Media Player Classic Home Cinema, SM Player, DaVinci Resolve and Shotcut.

Really weird!

[Scribzy]

I think this is due to having other data encoded on to the alpha channel like specular map or diffuse.

[Monteiro]

the second screenshot was taken from Photo-paint from Corel Draw

[LeviFiction]

As Scribzy says, it's what's built into the Alpha channel. Why? No idea. Could be specular or defuse maps, could be just an ugly alpha channel. But that would be software specific. Whatever it was designed for would have to know to use it for that purpose. Where did you get this file by the way?

A quick hex-based rundown of the file settings. It's a TGA 2.0 file, 32-bit depth, and the attribute bits are set to be an Alpha Channel specifically not an "unknown" type. It was made with the use of the Developer's Image Library(DevIL) but doesn't list anything else about the app that used DevIL to save the image.

But yeah, that's why it imports like that into PSP. Because it has attribute bits that it specifcally indicated were meant to be used as an alpha channel. PSP saw that and assumed it was important and loaded that info into the layer.

[Monteiro]

Where did you get this file by the way?

https://drive.google.com/drive/mobile/f ... =drive_web

https://youtu.be/lvuAYHZt7Sc

[LeviFiction]

Interesting, so they loaded it into Photoshop and then after editing it, saved it as a 24-bit TGA file deleting the alpha channel. A channel that, between the fact that it's designed for 3D and having gotten a good look at, I think it is a specularity map like Scribzy suggested.

In The GIMP after opening the image I just have to go to the channels palette and turn off the alpha channel and it goes away. I can make edits and save it out. Pretty easy.

So, how do we deal with this in PSP? I don't think we can. At least not in the newer versions. And not without using scripts.

In older versions of PSP we used to be able to "Un-erase" transparency that already existed. It essentially turned the alpha channel completely opaque. But they decided to "improve" the eraser a few versions ago, now it respects previous transparency and the eraser tool will only "unerase" what it has already "erased" from the image. With a little time and effort I could make a simple script that would replace the alpha channel manually, but I don't think there is any setting built into PSP that will let us open the image without the alpha channel.