Calculate initial velocity of a 3d vector-based projectile

Posted by Frotty on Game Development See other posts from Game Development or by Frotty
Published on 2012-07-01T19:00:03Z Indexed on 2012/07/01 21:25 UTC
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vector

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trajectory

Okay, so I got a Projectile with 2 Vectors, position and velocity. I now want to calculate the initial velocity for it in order to reach a specific point on the map.

Or actually, how high has the start z-velocity to be (because x and y are probably defined by a speed variable) in order for the projectile to hit the marked position.

The projectile is influenced by a constant gravity vector.

All calculations are done 32 times per second.

I want this, because I don't want to use a parabola function, so the projectile can still be influenced by other sources, simply adding some velocity.

I didn't really find anything referring to that topic and would be glad for every helping answer, Thanks.

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