Yunus Balcioglu

Hi,

I don't think xyzdist would return all of them. I haven't tested this but I suspect it returns the polygon whose normal is pointing towards the origin point.

In any case if you want to detect all overlapping polygons, you could use xyzdist first to find the nearest prim and then fire a ray in that direction using the intersect_all VEX function to find all intersected prims along that direction:
https://www.sidefx.com/docs/houdini/vex/functions/intersect_all.html [www.sidefx.com]

If the overlapping polygons all share the same points, a more robust and faster method would be to compare sorted primitive points:
https://www.sidefx.com/forum/topic/88523/?page=1#post-382336 [www.sidefx.com]

Now with Sky voice (Scarlett Johansson soundalike)

juejuezi

animatrix_
Hi,

No you can't do that. If it's a verified node, you can do that using Python and APEX:
https://www.sidefx.com/docs/houdini/model/verbs.html [www.sidefx.com]

Otherwise you would have to write your own version in VEX.

Can you tell me how to get writable gdp in vex in HDK? Currently, I can only obtain const gdp. Do you have any information?

I am not sure.

raincole

animatrix_
Hi,

No you can't do that. If it's a verified node, you can do that using Python and APEX:
https://www.sidefx.com/docs/houdini/model/verbs.html [www.sidefx.com]

Otherwise you would have to write your own version in VEX.

I'm still confused about verbs. I know how to call them in Python. But what are verbs actually? Are they defined at C++ level and compiled as native code that shipped with Houdini? Is it possible to define a verb with SOP nodes (or python, or vex?).

This page explains it a bit:
https://www.sidefx.com/docs/houdini/model/verbs.html [www.sidefx.com]

AFAIK as of now they have to be done at the HDK level. HDAs are not supported to be verbs. I believe SESI is working on that.