Forums Technical Discussion Move object based on current frame

Move object based on current frame

   1180   3   1
User Avatar
mattschumaker
Member
1 posts
Joined: 3月 2018
Offline
 
Hi, I'm new to Houdini. I would like to move a box or other object by a certain amount using an attribute wrangler when a certain frame occurs but I'm not sure how to do it. I'm trying to use find() with arrays but it's not working. Is there something like this that can work?

float p = {8.78, 8.19, 7.31, 7.23};

float o = {0, 136, 273, 409, 545};

float frames = {100, 200, 300, 400, 500};



if(find(frames, @Frame) >= 0){
int pos = find(frames, @Frame);
@P.x += o / 20.;
@P.z += p * 2.;
}
 Report
User Avatar
vusta
Member
555 posts
Joined: 2月 2017
Offline
 
here, your array syntax were a bit off…plus need a solver. You can look in the solver for the fix but get out of the solver to see it running properly.
Edited by vusta - 2020年1月2日 17:58:25

Attachments:
vu_solver.hiplc (94.0 KB)

 Report
User Avatar
tamte
Member
8772 posts
Joined: 7月 2007
Offline
 
you don't necessarily need a solver
float p[] = {8.78, 8.19, 7.31, 7.23};
float o[] = {0, 136, 273, 409, 545};
float frames[] = {100, 200, 300, 400, 500};

foreach(int i; float frame; frames){
    if (@Frame >= frame){
        @P.x += o[i] / 20;
        @P.z += p[i] * 2;
    }
    else break;
}
Edited by tamte - 2020年1月2日 19:14:58
Tomas Slancik
FX Supervisor
Method Studios, NY
 Report
User Avatar
vusta
Member
555 posts
Joined: 2月 2017
Offline
 
hmmm…I don't know enough vex-fu.
 Report
  • Quick Links