Robert Osfield wrote:
Hi Jason,

Well there is many different ways to define an Euler angle, which convention would you go for???

Rather than go down this tangled route the OSG just uses quaternions for rotation, they are far more robust and lack the ambiguities of Euler angles.

I'm well aware of that, and I even think it's a good idea. I'm sure it avoids a lot of support issues as well.

As I said, I was just curious about the history behind it (I guess I'm feeling nostalgic looking at all this Performer code). Was OSG always this way, or did it evolve over time?

If you'd rather not take the time to talk about it, I understand.

--"J"

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