Anthony D. Baye schrieb:
> Plants will grow towards a light source, it's called phototropism (which I
> learned about a long time ago and never thought to find a use for). you'll find
> that in a dark room with light coming through a hole in the ceiling, vines will
> grow along the floor toward the light, and will generally try to find the hole
> in the ceiling. Perhaps your model could account for the direction of the light
> source as well. It would be a matter of weighting the probability of a split in
> a given direction by the amount of light in that direction or the probability of
> reaching light by growing in that direction.
> Otherwise, I think it's excellent work, and I wonder if it could be applied to
> other plant life, like trees and shrubs.
> Are you predetermining the starting location, or is it random?
> "Thomas de Groot" <tDOTdegroot@interDOTnlANOTHERDOTnet> wrote:
>> "Christian Froeschlin" <chr### [at] chrfrde> schreef in bericht
>>> Also, there is a lot of ivy on top of the objects while the
>>> walls are more thinly covered. I'm no expert on ivy but this
>>> seems a bit odd (but probably it just needs more starting
>>> points to cover a wall).
>> In some way, real ivy seems to concentrate on the top of walls/objects,
>> maybe because sunlight is stronger there. At least, that is what I observe
>> in my garden, so the ivy generator is doing a good job :-) Thomas Luft's
>> generator shows exactly the same phenomenon.
At the moment, growing is weighted by 4 factors:
1. follow direction of last segment
while the last can be seen as growing towards light. It's easy to add
another weight which grows to a given vector, but growing to "light" can
be very complex, depending on scene complexity, maybe a path can help
out to accomplish this.
The starting point and primary growing direction are input parameters.
I think about a total replace of the current growing algo, as it always
clamps to any object, so hanging ivy is not really possible atm.
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