Multiple Expressions on blast node?

[schiho]

Hi,

 

i would like to add a second condition to my blast node, how this is done in Houdini?

 

if(pscale > 0.5 && $F > 30)

 

thats what i want to achieve. @pscale > 0.4 but what about the second condition? how is the syntax?

 

thanks

[rafaelfs]

Hi,

 

i would like to add a second condition to my blast node, how this is done in Houdini?

 

if(pscale > 0.5 && $F > 30)

 

thats what i want to achieve. @pscale > 0.4 but what about the second condition? how is the syntax?

 

thanks

This looks like a legal expression to me, you only forgot to put the output to the conditions, like:

if($PSCALE > 0.5 && $F > 30, 1, 0)

The trick is that I don't think you can't do this in a blast node, but a delete node which has the parameter field for expression.

 

Cheers

[tjeeds]

The Delete node is quite slow compared to the the Blast node. If you're dealing with a lot of points you might want to use an AttribVOP or AttribWrangle instead.

 

The VEXpression version is::

 

if(@pscale>0.5 && @Frame>30)
    removepoint(0,@ptnum);