is there a way i could replicate like 3 typed of trees on a grid…..that type of thing?…..as far as i can see houdini can only replicate one object…..whther i use particle instancing or the copy sop…..i cant find a solution……im actually trying to make different text characters shoot from a volcano (via particles)

Hi see attached. Check out the expression I am using in the switch sop to drive which bit of geometry gets selected

Rob

You might find this interesting (scene files at the bottom of the post), it's about instancing geometry and delayed loads and how to control them.
http://www.peterclaes.be/blog/?p=34 [peterclaes.be]

thanx for the responses……houdini senseiz