Jump to content

extrude node don't work correctly

Recommended Posts

hi everyone,

first, sorry for my english, i hope you will understand me.

i want extrude a line for creating animation..

my lines come from an object, but for this demo, it's ony simple line node.

when i extrude this simple line, extrude are not possible only if i rotate my line with a transform node.. if my lines are totaly in my axis, i can't extrude him.
it seem me that it's not right..
please, someone have an idea for change this?

my goal is each line are extruded in same orientation.


you will find my file in attachement.

you can change switch node for see what i say..

If someone can help me, it will good for me be.

i thank you for read me.





Share this post

Link to post
Share on other sites

@supermac hm i See that like this!!
Somehow if we take this and use poly expand 2d and then somehow raycast to original shape HM Yupiiiiii Maybeee

90 :wub:

float theta = radians(ch("theta"));
vector p0 = 0;
vector p1 = {1,0,0};
vector p2 = set (cos(theta),sin(theta),0);
vector p3 = cross(p1,p2);




int sig = p3.z > 0? 1: -1;
@angle1 = (degrees(sig*acos(dot(p1,p2)))+360)%360;
@angle2 = (degrees(atan(dot({0,0,1},p3),dot(p1,p2)))+360)%360;
theta = degrees(theta);


Share this post

Link to post
Share on other sites


thank you very much..

i will try..


but it's really complicated, no?

why houdini can't extrude a simple line?

it seem me that older versions can do!?!



Share this post

Link to post
Share on other sites

 @supermac For multiple Lines I think it has to do with normal's  I think. 
For just One Use Transform Extruded front (CHECK) in poly extrude.

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now