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I’ve recommended Isner’s guide to quaternions on numerous occasions to individuals who were struggling with the basic concepts of these rather arcane rotational representations.

It’s still worth a broad mention, as it is one of the best guides to the topic that I have encountered for anyone who might be struggling with them in LSL and Second Life, and they’re vastly more useful than Euler rotations, once you’ve understood the basics.

The electronic mailbag continues to be stuffed to overflowing, but I figured I would respond to this particular one in a post of its own, since Copyright – while it is ubiquitous, touching almost every point of our lives – continues to be poorly understood.

I’m trying to create a small store to sell sculpted Jewellery in Second Life.. but I’m worried about content theft as anyone… and so, I noticed a post from yours on the internet called “Property, Second Life, backups and you” explaining some basic topics about this, .. and I become very interested in the matter, now my straight question… Do you know how can I copyright my sculpties? I have noticed several businesses saying their creations have some sort of “copyright”, I want to copyright several sculpties of my own creation, sculpties that I can use as components to create several products, please I need advice in this matter ^^ Thank you very much.

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You might recall that I wrote a – rather complex – guide to using squid to intercept and cache Second Life textures, enabling you to improve Second Life performance for an entire local network. I know some few of you are actually using that system, though the setup requirements are quite steep (particularly in background knowledge).

Well, Vex Streeter (I don’t know her/his last name) has gone one better, improving caching performance with a store-rewriter and reducing some of the more arcane requirements. Definitely worth a look!

How to eliminate one very common source of lag Yesterday, I didn’t really have time to go over the network improvement that I posted, and explain it in more detail. Here’s the dope, starting with a little background.

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