Path mode Scale beginning and end

[US3087]

Hi, wonder if anybody can help me with Forest Pack Effects / expressions.

What I want to do is have the scale of scattered items be controllable by a curve / graph along the distance it's distributed along a spline.

For example, I have cascading plants that are set to path mode, but I want the longest cascades in the middle of the spline and smaller cascades at the beginning and end of the spline.

Any way I can set about doing this? I can simply multiply the fpItem.scale calue by fpItem.distPathPos, but that gives me not the result I want..

Appreciate any help!

[Rokas]

Hi

Sure. I think You got it pretty close to writing Yourself. Anyway here it is finished example:

[US3087]

Oh wow, legend!!

So much thanks right now Rokas!

[US3087]

Is there also a way to use the same / other curve to control the spacing value as well? (denser at ends, sparser in the middle)?

[Rokas]

For that granular level control You'd better use RailClone.

[US3087]

Railclone and plants don't work too well - as it's trying to make one large mesh rather than instance the segment? (I believe only Vray has the instancing option and I'm on Corona)

Or am I wrong here?

[Rokas]

It should be fine with both vRay and Corona. Let us know if You face any challenges.

[US3087]

Cheers, thanks I'll give it a go

[Rokas]

Anyway, added another curve to control spacing.