[Bf-committers] Curve Build Effect
johnny.matthews at gmail.com
Wed Mar 30 16:28:28 CEST 2005
Ahh, very good. (light goes on!)
I was watching an apple ipod commercial the other day that had lots of
arrows building in this style and thought to myself "how can I do this
in blender?" It will be very handy! Thanks Matt!
The script idea is an interesting one. hmmmm, a challenge!
Matt Ebb wrote:
> On 30 Mar 2005, at 6:56 AM, Johnny Matthews wrote:
>> When I tried to duplicate your effect, I made my curve keys all down
>> for one and all up for the next and instead of it animating like
>> yours (a growth pattern) all the points on the curve went up at the
>> same time making the resultant curve bulge into it's final shape. I
>> saw you ony had 3 keys on the curve so you did not animate each point
>> seperately. So what am I missing?
> It's to do with how the RVKs interpolate. It's hard to describe in
> writing, but the gist of it is that you're only interpolating between
> the completely flat state and the completely 'solid' state. Check the
> below file for a much better explanation (should have done this the
> first time, that last file was almost directly appended from another
> file of mine and wasn't so clean) :) This one also includes an example
> for the 'catch me if you can' arrow-style ones too.
> I realise this sort of thing takes a bit of lateral thinking and is
> pretty obtuse if one doesn't understand the individual tools behind
> it. That's ok, since it's a pretty specific thing to do. This would
> probably be a great candidate for a nice friendly Python script where
> you select the curve you want to grow, and the script generates and
> animates all the other curves for you and links them up properly. You
> could even build in presets for different line styles and so on.
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