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NeHe tutorials, what is meant by units?

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He is always saying move this way or that way so many units, what are these units based on? They cant be pixels because 1 unit in the tutorials moves my object over too far. Can anyone help me on this?

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well at first i was going to reply with a wtf but after re-reading your post i see exactly what you are saying.

Thanks for the help

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As a personal preference, I like to think of 1 unit as 1 centimeter when dealing with 3d worlds (such as quake levels). It simply fits well...

I think it''s good to give 1 unit a reference from the real world as it allows you to "scale" the world on a more familiar level (cm - m - km, not 1 unit - 100 units - 100000 units)

Crispy

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