CGTalk - Constrain particles to surface

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davestewart

10-10-2006, 09:05 AM

Hi Guys,
Hopefully an easy one but I searched the threads with no luck.

I'm animating a fairlground, and I want to have some simple people (just the merest suggestions, like a watercolour painting as the camera will be moving very quickly) on the ground.

So I have my person mesh, a wind force with turbulence at 1.2 and speed at 0.
The Pflow is set up like this:

Birth
Shape Instance (person)
Position Object (Ground plane)
Speed By Surface (Ground Plane, parallel)
Force (Wind)
Send Out

Script Operator (on Proceed pCont do ... pCont.particlePosition *= [1,1,0]

However, it's not really going as I planned. The particles still end up moving vertically, and not sticking to teh ground plane.

Suggestions would be most welcome,
Thank you,

Dave

davestewart

10-10-2006, 11:02 AM

OK, I used a drag spacewarp in the end, but it would be great to know how to actually constrain the particles to the (possibly uneven) surface and allow them to mill around.

Thanks,
Dave

OlegB

10-10-2006, 11:12 AM

Lock/Bond operator from Particle Flow Tools: Box#1.

Thanks,
Oleg B.

darkdreams

11-09-2006, 09:29 AM

Why don't you give it a visit to Allan Mckay (www.allanmckay.com (http://www.allanmckay.com)) and particlefx.com tutorials, those are really awesome and maybe got the one that you need it :thumbsup:

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