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Keira Wells
Blender Sculptor
Join date: 16 Mar 2008
Posts: 2,371
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05-07-2008 15:55
Everyone who's worked much with scultpies knows that SL has a problem with the lossless upload.
However, on a JIRA about it (I think it was in the JIRA) a Linden stated that it was seemingly a download problem, not an upload problem.
Now, yesterday, I was fumbling about with SLoft (Just got it, and so far it's absolutely brilliant, so i can't stop playing with it), and made a pillar. I uploaded the sculpt map losslessly via the built-in uploader.
When I first applied it to the sculpty prim, it worked perfectly, was wonderfully perfect, truly. No jagged edges, no twisted poles, nothing.
Now earlier today, I logged in and fussed about a bit more..made a couple more things, and decided to shove all my SLofts into one object (Keira's Alter of Leg Love. Yes, I know, sounds great, right?)
I noticed that all of them looked worse than the initial application. The first time it was all smooth and exactly as I'd shaped it. This time, the column had twisted poles, the arch I made had a funky keystone, the leg was a little lumpy... the heart was pretty much right on though.
Thinking back, all of my two-prim trees looked perfect initially too, and now have a visible strand.
So it seems that when you upload losslessly via the SL client, it works properly, and when applied it works properly for a limited time, and then for some reason the downloading becomes less accurate or something.
But somehow, SLImageUpload uploaded maps seem to always work perfectly, which is awesome, but odd.
Anyone happen to have a workaround at all, or any insight into what might cause this? I'm really just curious. Also, building forum seems best for this, but not sure, so if anyone doesn't like it, sorry =/
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Tutorials for Sculpties using Blender! Http://www.youtube.com/user/BlenderSL
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Anti Antonelli
Deranged Toymaker
Join date: 25 Apr 2006
Posts: 1,091
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05-07-2008 16:17
It's a current bug  Check this thread: /8/fb/256939/1.htmlAt least one link in there to some tips that might help out, and a lovely Jira to vote for 
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Designer of sensual, tasteful couple's animations - for residents who take their leisure time seriously.  http://slurl.com/secondlife/Brownlee/203/110/109/ 
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2k Suisei
Registered User
Join date: 9 Nov 2006
Posts: 2,150
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05-07-2008 16:24
When you first apply the sculptmap it is downloaded and applied to your prim. The 2nd time the client requires the sculptmap it takes it from the cache instead of downloading it.
The problem seems to be that the client expects the sculptmap to be of a certain size. It assumes the sculptmap is compressed when in fact it isn't because you uploaded it with the lossless option. So the client only takes a small portion of the sculptmap and applies it to your object and assumes the job is done. Leaving you looking at a wrinkly nutsack.
From what I hear SLImageUpload uses a different compression library and so it manages to compress the sculptmap smaller than the official viewer. Yet why this changes things when compression isn't even used for lossless sculpties I've no idea.
A 64x64 image uploaded with SLImageUpload should be the same size as a 64x64 image uploaded with the normal viewer.
So god knows..
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Keira Wells
Blender Sculptor
Join date: 16 Mar 2008
Posts: 2,371
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05-07-2008 16:30
Thanks for thelink!
And awesome explanation, 2k, thank you!
(Edited cause got my threads confused and was thinking this one had a JIRA link when it was the OTHER sculpty lossless issue thread XD[The one linked to])
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Tutorials for Sculpties using Blender! Http://www.youtube.com/user/BlenderSL
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