How to emit different types of geometries

[shilpesh]

Hi,

I have created a scene where I am emiting spheres from a points on grid by attaching sphere geo and popnet to copy sop. Is there any way to copy different geometries (for e.g. box, teapot) on the grid and then emitting them randomly. I am attaching a file which you can download to get clear idea about my question.

-Thanks

ParticlesEmit.hipnc

[ryew]

Here's a simple solution using a Switch SOP driven by a value randomized for every point in the Copy SOP to switch between the three geometries. No doubt there are more elegant solutions, but this is a quick example of one way. Note this can also be done using instancing at rendertime rather than actual geometry in the scene (search for instancing on odforce and you should find multiple threads on the topic)

Hope that helps

ParticlesEmit_v2.hipnc

[darorck]

I'm just starting with Houdini, but this could be a way. With a switcher and a stamp in the copy SOP.

edit: Same solution , 2 min later

Edited March 20, 2012 by darorck

[gaurav]

Hi Shilpesh,

Source group parameter in copy sop allows you to choose a subset of groups.

once could use it something like following.

It can further be abstracted by creating a bundle with all the obj from the scene level.

obj merge the bundle content using @ . Connectivity , Partition for creating groups. hint hint.

Cheers,

Edited March 20, 2012 by vectorblur

[shilpesh]

Thanks for the reply guys That was really helpful.

[Benyee]

You could get some learning stuff very useful:here

Edited March 21, 2012 by Benyee

[sanchoflat]

by the way, how can i emmit DOP geomitry with particles. I try to add dynamics to particles, but it s not good. try to copy allready DOP obj, but i have interesting effect, but not what i want.

[shilpesh]

You could get some learning stuff very useful:here

Thanks for that link Benyee :)That was very informative