Feature request for Blurring Preview Images?

Q&A about the latest versions
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Branigan
Posts: 14
Joined: Tue May 19, 2020 3:43 pm

Thu May 21, 2020 6:03 pm

Could it be an option to apply a varying amount of Gaussian blur to Preview images?

I've tried the various different resolutions and quality settings and the 1:4 and 25 quality is fine for size/speed, but it's quite blocky. I coud increase quality, but filesize increases accordingly.

Taking an original tile and shrinking it 1:4 and applying some blur, then adjusting the quality settings to get about the same filesize as is currently exported at quality 25 gave more pleasing results. As it takes less data to encode a blurred image the quality setting can be higher for the same filesize, so the JPG artifacts aren't as visible.

A clearer, soft image visible for a second before the high-res loads, is more pleasant than seeing the blocky version before the high-res loads. It's like your eyes are simply adjusting focus, or it's almost a 'free' transition effect.

BTW, a small buglet: changing the Preview settings type (None, Grayscale, Sepia, Color) doesn't export a new version unless you also change some other value, such as quality.
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k.ary.n
Gnome
Posts: 362
Joined: Wed Aug 15, 2007 1:02 pm

Tue May 26, 2020 11:42 am

Request added to the queue!

As for the apparent bug, this is probably just the browser cacheing. For me, if I restart the integrated web server, it'll show the change.
Branigan
Posts: 14
Joined: Tue May 19, 2020 3:43 pm

Wed May 27, 2020 2:46 pm

Thanks, doing it manually is a PITA.

The buglet is not the browser caching, Pano2VR doesn't actually create any new files when you export.

I can have the export folder open, switch from Color to Sepia, re-export and the Color PREVIEW images are still there. Adjust the quality/size of the NORMAL tiles and re-export and you get both Normal and Preview images exported and now the Previews are Sepia. etc.

BTW, I'm not doing Multi-res, just Single-res exports.
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