wwp@yahoogroups.com:
Re: New Flash player
Yahoo Account 2009-Jul-03 08:55:00
Hans,
I'm only mentioning the limit because, until the server has converted the raw equirectangular jpeg to the cube faces and the QTVRs, it will try the various possible file types until it finds an existing one, in this order:
1) qtvr (because it's single-file and easiest on the server, and it's tiled, so the size limit is circumvented)
2) jpeg cubefaces (causes six simultaneous requests instead of one, but faces usually won't break the size limit either.)
3) jpeg flat (i.e. a size-adapted sphere - not nice, distorts easily towards zenith/nadir, but better than nothing)
4) jpeg source (i.e. the originally uploaded file, - see #3, plus the size problem)
* So the first thing that will show after the upload is #4, and if it's too large, it'll fail. *
I'm going to add a notice to this fact if the JPEG is 8191+, which should help to avoid initial confusion ("it didn't work a few hours ago, but now it does?")
I might use a stand-in image that says "Thank you for providing a high resolution source. It is currently being processed. Please check back in a few hours to see the results."
Re: the previews from the QTVRs:
I'm not sure I understand this right - do you mean that they are "bad", as in, they should be larger/sharper? Or that it would be better to not use the previews at all? I think I could also use a flat-sphere single-file representation as fast-start preview, I'll look into that.
-Markus
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>From: Hans Nyberg <#removed#>
>To: #removed#
>Sent: Friday, July 3, 2009 10:29:23 AM
>Subject: Re: New Flash player
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>>On 03/07/2009, at 10.02, Yahoo Account wrote:
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>>> With 8 K, you're exactly at the limit which causes Flash to fail as
>>> it tries to display the raw image in one piece: 8192px.
>>> e.g. 8190 x 4095 will work. I don't know why Adobe decided to
>>> introduce this in Flash 9 ...
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>>Marcus
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>>Why do you talk about the 8192 limit. As far as I can see all panos
>>are converted to QTVR which is used as the source also for KRPano.
>>The flash limit then is much higher around 6000x6000 cubefaces even
>>if most computers will not have the Ram and speed needed for that size.
>>Not to talk about the limit for browsers.
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>>I can not find any panos which uses an Equirectangular as the source.
>>And I also should ad that it is not adviceable to use it in KRPano
>>even if you can,
>>You will get a lot of distortions both at zenith and nadir and also
>>wavy lines even in Flash 10.
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>>Something else is that the previews from the QTVR is bad.
>>They do not work as it should in KRPano. You have to wait until it
>>is all loaded before the pano actually starts open for the full
>>resolution. The QTVR works fine in Quicktime.
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>>Hans
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