Forums Houdini Indie and Apprentice need help formatting a for loop in vex.

need help formatting a for loop in vex.

   1076   2   0
User Avatar
NicTanghe
Member
193 posts
Joined: 12月 2016
Offline
 
Hello dear houdini magicians.

i'm trying ti cap some geometry using vex and i'm having some problems propperly formatting my code.


i'm using the following code.


for(int i = 0 ; i < 8; i++){



int prim + itoa(2+i)  = addprim((3830 + i), "poly");



int (vextex + itoa(8+4i)) = addvertex((3830+i), (prim + itoa(2+i)), 3780-i);
int (vextex + itoa(8+4i+1)) = addvertex((3830+i), (prim + itoa(2+i)), 3781-i);
int (vextex + itoa(8+4i+2)) = addvertex((3830+i), (prim + itoa(2+i)), 3760-i);
int (vextex + itoa(8+4i+3))  = addvertex((3830+i), (prim + itoa(2+i)) , 3761-i);  
}

it's the attribute wrangle at the end of the file.
Edited by NicTanghe - 2019年12月9日 14:04:25

Attachments:
Robot.hipnc (292.2 KB)

 Report
User Avatar
tamte
Member
8594 posts
Joined: 7月 2007
Offline
 
couple of things there but mainly you can't define variable name by string concatenation
nor you need to in your case

also geohandle for addprim() and addvertex() can always be 0, the number you are trying to feed there is gonna be ignored

try this for your first cap:
for(int i = 0 ; i < 10; i++){
    int prim = addprim(0, "poly");
    addvertex(0, prim, 3780-i);    
    addvertex(0, prim, 3781-i);
    addvertex(0, prim , 3760+i);
    addvertex(0, prim , 3761+i);  
}
or in simpler syntax
for(int i = 0 ; i < 10; i++){
    int pts[] = array(3780-i, 3781-i, 3760+i, 3761+i);
    addprim(0, "poly", pts);
}
Tomas Slancik
FX Supervisor
Method Studios, NY
 Report
User Avatar
NicTanghe
Member
193 posts
Joined: 12月 2016
Offline
 
Thank's allot for your reply.
It was realy helpfull !
Edited by NicTanghe - 2019年12月9日 20:03:05
 Report
  • Quick Links