Nick Petit

npetit

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obj-image SIGGRAPH ASIA
New RBD Workflow Tools in Houdini 18

Recent Forum Posts

transforming lights in solaris Nov. 30, 2022, 4:02 a.m.

There are no relative USD prim paths, don't confuse node paths and USD primitive paths, these have no relationship to one another. I guess you can think of LOP nodes' primitive pattern parms more like the group parm on SOP nodes - they allow you to specify on what subset of the underlying USD data the nodes should operate on.

Solaris parent constrain examples Nov. 29, 2022, 3:53 p.m.

Hi Geoff,

Here is a very basic example of using the parent constraint LOP to parent one object to another.

Vex "intersect" and "removepoint" functions not working; removes ALL points Nov. 21, 2022, 12:18 a.m.

If you add a small offset when doing the intersect you'll avoid prims intersecting themselves.

vector hit_p, hit_uv;
vector dir = {0, 1, 0};

int prim = intersect(1, @P + dir*0.000001, dir, hit_p, hit_uv);
if(prim >= 0) removepoint(0, @ptnum);

This should give you what you're after.