points Delete Points based on Camera Origin

[jonidunno]

I'm trying to delete points bases on the camera's origin.  I have a vex script that was calculating the visibility:

vector camera_dir = point(1,"P",1) - point(1,"P",0);

f@vis = dot(@N,camera_dir);

the problem is that it's based off of having two points from a ray sop. Can I just do it based off the camera origin itself? Any help would be amazing! 

 

Thanks,

camOrigin01_v001.hip

[Noobini]

but why not do it like this ?

DeleteFromCamView.hipnc

[Noobini]

here I've even done away with the Group...just do the N right in the Delete itself...

[jonidunno]

Thanks for the response, I'll take a look at it!

[jonidunno]

53 minutes ago, Noobini said:

here I've even done away with the Group...just do the N right in the Delete itself...

It looks like this method only works when you do it directly from a prim. If you scatter points or do it from the ray it doesn't work.

[Noobini]

that's coz it hasn't got N set yet. So here I initialize N, then delete geo but keep points with an Add, then Delete...works...

Edited November 10, 2017 by Noobini

[jonidunno]

Thank you this is great!