View Full Version : how to restrict particle path?

11 November 2007, 04:39 PM
I am trying to recreate the growth of a pine tree, and for that I am thinking of using a pf source moving in the direction of the branches that grow, and the particles (animations of growing leafs) with zero speed. this way as the pf goes along the growing branch, the leaves go being birthed along the path.

If each leaf and branch was to remain still during the whole animation, it would work. And I see that this happens in most "growing tree" animations. But until the tree is "mature", all of its parts must continue to grow, thus keeping everything always in motion. But this way the leaves are staying in the same space/position while their parent branches move along, leaving them floating in air.

If I simply make the particles inherit the pf source motion, the whole idea is wasted. What I need to do is let the particles position/speed independent of their pf source, but inheriting the motion/translation of its branch parent.

Simplifying: I need to link the particles to the branch, and not to the pf source that created them.

Any idea of how do I do that? Or another idea of how to create the animation of the tree... I have being thinking about that for days and the dead line is aproaching. Please, someone help me from going crazy! =P

And... sorry for my english.

11 November 2007, 04:11 PM
check out dekoīs tutorial covering that topic:

11 November 2007, 07:23 PM
Thank you PsychoSilence. But this aproach would be impossible for what I want. For a simple plant like that it became dificult to manage in my viewport, imagine for a whole tree.

But so far I gave up using particles for this. It seems to be impossible. So I did it with path constraints and manual animation. Until now this terrible thing is what I got:

But this particle system is very interesting and I think I will learn a lot analyzing this file. Surely it will be useful. The video didnīt work. Is it a codec problem? I just got a black screen.

Anyway, thank you again.

12 December 2007, 03:25 AM
Yes the video link for the tutorial didnt work for me either, and i have CCCP.

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12 December 2007, 03:25 AM
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