Change the size of particle
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croleo
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March 26, 2015 7:16 a.m.
Hi, everybody! I try to made a drop trail. I use a particle, attached with the node “trail” and i want the particles of the trail, become small as the particle's age. I just succeeded to scale all the particles at the same time. Someone can give me some advice ? Thanks.
Attachments:
RnD_Droplet_001_test01.hip (75.5 KB)
March 26, 2015 9:50 a.m.
You can use a Point VOP to do per-point modifications like that. In the Point VOP, divide age by life, plug that into a fit, and then plug that into a bind export node set to pscale. I can't put together an example right now, but I can put one together in a bit if that's not clear enough.
croleo
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March 26, 2015 9:53 a.m.
thanks, yes, please if you can put one, it'll be cool.
croleo
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March 26, 2015 11:57 a.m.
I test with the Point VOP, i put it after the node “trail”…but it doesn't work….i put the node that you say, the spheres are vanished
March 26, 2015 12:07 p.m.
I checked your project , You can't use this solution , because some of your point's are overlapped ! You can achieve to trail effect with another methods such as using Old-POP Network. Also you can use Ramp Parameter for controlling particle's size along your trail , it's more handy 8)
March 26, 2015 12:08 p.m.
Just check this project :wink:
Attachments:
JK_POP_Size.hip (164.1 KB)
March 26, 2015 12:10 p.m.
I made two different project for you , some of they is a little complex , But I think it's interesting.
croleo
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March 26, 2015 12:16 p.m.
Oh nice! thanks you very much! I check this!
In my final project, i want create any particle to flow on the mesh's surface.
March 26, 2015 12:20 p.m.
If you wanna flow particles from surface of the Sphere instead of it's points , just append a Scatter SOP after Sphere SOP :wink:
croleo
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March 26, 2015 12:27 p.m.
thanks for your advice,
For flow the particles on surface, i use the node “Ray”, i plug the particle and the geo, it work perfectly
March 26, 2015 12:42 p.m.
croleo thanks for your advice, For flow the particles on surface, i use the node “Ray”, i plug the particle and the geo, it work perfectly Sorry , I misunderstand your goal :roll:
Yes , Using
Ray SOP is a good choice :wink:
croleo
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March 27, 2015 6:16 a.m.
No problem!
It work perfectly, thanks you very much!
I wonder if you know how to the particles follow a curve and flow on the surface at the same time?
sl0throp
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March 27, 2015 10:30 a.m.
Ray the emitter curve on the surface before it goes to the pop network?