Hi

I'm trying to turn particles into smoke and fire etc but in pervious versions within a pop network i had access to the attribute node where i could just create the density attribute. But with H14 i'm not sure what they've done with it. How can i add in custom attributes with no attribute node within the new pop network?

Thanks

Did you work with Old-POP network in H12 before ?

Because New Particle Network is not only for H14 , It's added in the H13.

however for adding any custom attribute to the New particles in the AutoDopNetwork , you can use POP Wrangle node , just add this node after POP Source and use this expression in the VEXpression field :

f@myVar = 10.55 ; // Adding a float attribute
i@myVar = 1; // Adding an integer attribute

:wink:

I had only been learning how to use particles using the old pop network and would like to move on learning the new pop network.

Where could i find a list or documentation on the code you have provided? (f@myVar, i@myVar) i would like to know what they do since since i'm unsure what F and I represents or is referring too?

Thanks

have you seen this tut's for H13:

https://www.sidefx.com/index.php?option=com_content&task=view&id=2631&Itemid=344 [sidefx.com]
https://www.sidefx.com/index.php?option=com_content&task=view&id=2574&Itemid=389 [sidefx.com]
https://www.sidefx.com/index.php?option=com_content&task=view&id=2635&Itemid=389 [sidefx.com]

ltmedic
I had only been learning how to use particles using the old pop network and would like to move on learning the new pop network.

Where could i find a list or documentation on the code you have provided? (f@myVar, i@myVar) i would like to know what they do since since i'm unsure what F and I represents or is referring too?

Thanks

For learning these expression you should know VEX Expressions , you can use Houdini Help and some different tutorials about VEX , for example cmiVFX has some tutorials about VEX.

After learning VEX , you can working with New-POP easily.
in the Old-POP we have access to geometry local variables such as $PT , $CR , $PSCALE and etc and use them for controlling Old POP nodes.

But in the new pop we can't use them with $ syntax. instead of $ we should us e @ .

All of the POP nodes in the New POP such as Force POP has special parameter that called VEXpression. with this parameters we can access to local variables and use them for controlling different parameters such as Frequency (in Force POP) exactly like Old-POP !

however start for learning some basic knowledge about VEX , then learning New POP is not so hard :wink: