How to read attributes values into POP Grains every frame?

[magneto]

Hi,

 

I thought the grains solver read sop attributes every frame. Is this not the case? Should I be using a SOP Solver to bring the attributes values from SOPs every frame manually?

 

Just want to make sure I am not doing unnecessary steps.

 

 

Thanks

 

PS I am doing it with a POP Wrangle.

[anim]

correct, it is not updating from SOPs automatically, which is saving time and avoiding problems, it's using POP Source after all 

doing it in POP Wrangle is fine

[merlino]

So is it possible to import an attribute into dop (EDIT: POP/DOP) using only a POP wrangle or I misunderstood?

Edited November 1, 2015 by merlino

[anim]

So is it possible to import an attribute into dop (EDIT: POP/DOP) using only a POP wrangle or I misunderstood?

no, you can use anything you want as POPs are just normal points, but most commonly you would use POP Wrangle/POP VOP, Geometry Wrangle/Geometry VOP or Sop Solver( so any SOPs like Wrangle, Attrib Copy, ...)

[dus.marjanovic]

So, if I have animated attribute in SOP and i want to import that in DOP  in order to update every frame, how you do that in pop wrangle or pop vop? How do you call attribute from level up?

 

Thanks

[anim]

..., how you do that in pop wrangle or pop vop? How do you call attribute from level up?

...

 

go to Inputs tab

then set what each input represents, for example if you set first input to First Context Geometry, it will mean that accessing input 0 from wrangle or vopnet would actually access geometry connected to the first input of POP net

but you can as well point it to any SOP or DOP geometry data

 

so if you set Input 1 to your desired geometry you want to update some float attribute foo from, then you can access it in wrangle like:

f@foo = point(0, "foo", @ptnum);

instead of @ptnum you can store ptnum value before emitting grains to be able to then index the correct point in case you need that

[dus.marjanovic]

It works,

 

thanks Anim for your help,

Cheers.