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PNG Snapshot Issue
ynotfish
Senior Contributor Location: N.S.W. Australia Joined: May 08, 2009 02:06 Messages: 9977 Offline
[Post New]
I'm not sure how I've only just noticed this... I use snapshots a lot with screen captures & tutorials.

To replicate:


  1. Set File > 2D snapshot preferences to .png

  2. Insert a 16:9 .png image with a transparent background

  3. Take a snapshot - name it (say) "Snap - full"

  4. Resize the 16:9 .png so it doesn't fill the screen

  5. Take another snashot - name it (say) "Snap - resize"


What happens: if the .png image doesn't fill the screen (i.e. if it's resized or a different aspect ratio), part of the snapshot is black (not transparent)

The same thing does NOT occur in previous versions (tested PDR 14, 13 & 12)

""

That butterfly is attached if you want to have a flutter...

Cheers - Tony
[Thumb - Butterfly1.png]
 Filename
Butterfly1.png
[Disk]
 Description
 Filesize
2620 Kbytes
 Downloaded:
57 time(s)

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Carl312
Senior Contributor Location: Texas, USA Joined: Mar 16, 2010 20:11 Messages: 9090 Offline
[Post New]
Tony, you are seeing the result of a snapshot of the preview window shown in Paint.net. When you resize the image you are left with the black borders in the preview, which you don't see in PD.

That is not what PD shows. Attached screen shot of the PD preview.

.
[Thumb - preview in PD 15 Transparent image no background.PNG]
 Filename
preview in PD 15 Transparent image no background.PNG
[Disk]
 Description
Windows 7 Snipping tool of preview window
 Filesize
252 Kbytes
 Downloaded:
61 time(s)
Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

ynotfish
Senior Contributor Location: N.S.W. Australia Joined: May 08, 2009 02:06 Messages: 9977 Offline
[Post New]
Thanks for taking an interest Carl - I know it's a pretty tedious topic.

Yes - that's right. I wanted to show what the real snapshot looked like.

In PDR15, try dropping in a white colour board behind (Track 1) the snapshot of the resized butterfly...

Cheers - Tony
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JL_JL [Avatar]
Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline
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Although different than previous versions, I think the new behavior is correct. One has a fixed frame size transparent background in original png file, when one resize it too should be resized. The open space is black as that's the default video track "color". If one would have a color board or such it would pic up that color. Which again would appear to be correct. Want resize full frame transparent, put a transparent clip as background video track.

Jeff

This message was edited 1 time. Last update was at Dec 29. 2016 14:03

Carl312
Senior Contributor Location: Texas, USA Joined: Mar 16, 2010 20:11 Messages: 9090 Offline
[Post New]
Tony, I did try a white background, it works just as Jeff says. The background of the resized transparent image becomes white as does the PD background. Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

ynotfish
Senior Contributor Location: N.S.W. Australia Joined: May 08, 2009 02:06 Messages: 9977 Offline
[Post New]
Quote Although different than previous versions, I think the new behavior is correct.


Thanks Jeff -

I guess, on this occasion, you & I have a different concept of "correct". In various modules of PDR - titles, partlcles, PiP etc - that "black" has always been transparent (even in a snapshot) in previous versions. That fact has allowed the snapshot feature to be used for doing all kinds of things flexibly & easily. PDR15's "correct" way of doing it puts a stop to that.

I understand what you're saying.

Cheers - Tony
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ynotfish
Senior Contributor Location: N.S.W. Australia Joined: May 08, 2009 02:06 Messages: 9977 Offline
[Post New]
Quote Tony, I did try a white background, it works just as Jeff says. The background of the resized transparent image becomes white as does the PD background.


Carl -

Are you saying that when you put the colour board in Track 1 and the resized butterfly in Track 2... then take a snapshot... you don't get something like the attached image?

Are you saying that, in your snapshot (not the preview window), that the whole background is white?

Cheers - Tony
[Thumb - SnapShot(33).png]
 Filename
SnapShot(33).png
[Disk]
 Description
 Filesize
1826 Kbytes
 Downloaded:
61 time(s)

This message was edited 1 time. Last update was at Dec 29. 2016 14:42


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JL_JL [Avatar]
Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline
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Quote: That fact has allowed the snapshot feature to be used for doing all kinds of things flexibly & easily. PDR15's "correct" way of doing it puts a stop to that.

I guess I don't see the "puts a stop to that" view, put a transparent full size frame in video track 1 and edit clips in other tracks and you have the same as previous versions don't you? All snapshots will have fully transparent framesize background regardless of scale of clip being edited.

Jeff
ynotfish
Senior Contributor Location: N.S.W. Australia Joined: May 08, 2009 02:06 Messages: 9977 Offline
[Post New]
Quote I guess I don't see the "puts a stop to that" view, put a transparent full size frame in video track 1 and edit clips in other tracks and you have the same as previous versions don't you? All snapshots will have fully transparent framesize background regardless of scale of clip being edited.


OK Jeff - point taken and you're completely "correct". Dropping a fully transparent image in Track 1 does indeed make PDR15's .png snapshots function as they did in the old days.

It probably doesn't affect many users anyway, but anyone who sees it as a problem might get some use out of the attached hand crafted plug-in for PDR15. laughing

Cheers - Tony
[Thumb - Justliketheolddays.png]
 Filename
Justliketheolddays.png
[Disk]
 Description
 Filesize
5 Kbytes
 Downloaded:
68 time(s)

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Carl312
Senior Contributor Location: Texas, USA Joined: Mar 16, 2010 20:11 Messages: 9090 Offline
[Post New]
Quote
Quote Tony, I did try a white background, it works just as Jeff says. The background of the resized transparent image becomes white as does the PD background.


Carl -

Are you saying that when you put the colour board in Track 1 and the resized butterfly in Track 2... then take a snapshot... you don't get something like the attached image?

Are you saying that, in your snapshot (not the preview window), that the whole background is white?

Cheers - Tony
If I produce I get a solid white background. A snapshot has a white background with the transparent image in the middle. like this attachment.
 Filename
Produce.mp4
[Disk]
 Description
The image produced. Solid white background
 Filesize
4441 Kbytes
 Downloaded:
580 time(s)
[Thumb - White background.png]
 Filename
White background.png
[Disk]
 Description
If you open in Paint.net you get the strange snapshot.
 Filesize
1725 Kbytes
 Downloaded:
59 time(s)
Carl312: Windows 10 64-bit 8 GB RAM,AMD Phenom II X4 965 3.4 GHz,ATI Radeon HD 5770 1GB,240GB SSD,two 1TB HDs.

ynotfish
Senior Contributor Location: N.S.W. Australia Joined: May 08, 2009 02:06 Messages: 9977 Offline
[Post New]
OK Carl -

That's good. We're on the same page, so to speak. I was starting to think it may be my system playing up.

My point is that there are times when it's good to be able to re-use the snapshot in editing or template making. e.g it's a snack to create a lower third for re-use by setting up the screen then taking a snapshot to use throughout the project or as a template.

I'll just put up with having to work around it.

Cheers - Tony
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