Cycling 74 » Topic: How to plunge my vector & points distance calculations into gen for efficiency ? http://cycling74.com/forums/topic/how-to-plunge-my-vector-points-distance-calculations-into-gen-for-efficiency/feed Tue, 18 Jun 2013 21:22:37 +0000 http://bbpress.org/?v=2.2.4 http://cycling74.com/forums/topic/how-to-plunge-my-vector-points-distance-calculations-into-gen-for-efficiency/#post-47155 <![CDATA[How to plunge my vector & points distance calculations into gen for efficiency ?]]> http://cycling74.com/forums/topic/how-to-plunge-my-vector-points-distance-calculations-into-gen-for-efficiency/#post-47155 Sun, 10 Jun 2012 09:47:58 +0000 Julien Bayle Hi there,
diving in GenExpr with jit.gen for better efficiency.
Even with http://cycling74.com/2012/02/02/gen-tutorial-2a-the-joy-of-swiz/, I’m a bit lost.

As dtr suggested here: http://cycling74.com/forums/topic.php?id=40408, I’d like to use jit.gen for a (basic) calculation.

I have my vector coming from my cam view (position, orientation) & a point (position).
I need to calculate elevation and azimuth relatively to my cam vector (indeed, a & e vary according to the orientation of cam)

anyone would help me with this apparently easy stuff with gen ?

swiz seems to be the key.
but considering a matrix 1,3 (my vector, basically), how can I explode its values to x y & z variables to use them in a codebox inside gen …?

ANY leads/helps would save my hour =)

]]> http://cycling74.com/forums/topic/how-to-plunge-my-vector-points-distance-calculations-into-gen-for-efficiency/#post-169535 <![CDATA[Re: How to plunge my vector & points distance calculations into gen for efficiency ?]]> http://cycling74.com/forums/topic/how-to-plunge-my-vector-points-distance-calculations-into-gen-for-efficiency/#post-169535 Mon, 11 Jun 2012 04:40:01 +0000 Wesley Smith Hi Julien,
Are you calculating just a single result or do you have a matrix of positions that you’re calculating? If it’s a matrix on input positions, I would set things up as follows:

[param position] // cam position
[param orientation] cam orientation
[in 1] // positions to calculate a/e data relative to camera

If you have a patch, even if it doesn’t work, but shows the data you’re working with, that would help immensely.

]]> http://cycling74.com/forums/topic/how-to-plunge-my-vector-points-distance-calculations-into-gen-for-efficiency/#post-169536 <![CDATA[Re: How to plunge my vector & points distance calculations into gen for efficiency ?]]> http://cycling74.com/forums/topic/how-to-plunge-my-vector-points-distance-calculations-into-gen-for-efficiency/#post-169536 Mon, 11 Jun 2012 07:21:38 +0000 Julien Bayle Hi wesley,
http://cycling74.com/forums/topic.php?id=40408 answered to that finally, being quite related.

May I ask you your opinions about the last post I just made ?
http://cycling74.com/forums/topic.php?id=40408&replies=17#post-196264
My system needs to be a bit optimized, even at this point.
Any help from you would be appreciate :)

]]>