void SetRoot(int primnum)
{
int boolRoot=prim(0,“Root”,primnum);//boolRoot=3
printf(“%d before:%d ”,primnum,boolRoot);
setprimattrib(0,“Root”,primnum,1,“set”);
setvertexattrib(0,“Cd”,primnum,1,{1,1,1});
setvertexattrib(0,“Cd”,primnum,0,{1,1,1});

boolRoot=prim(0,“Root”,primnum);//boolRoot=3
//getattribute(0, boolRoot, “primitive”, “Root”, primnum);
printf(“ after : %d \n”,boolRoot);

}
in attribute wrangle with Runover (Detail once) mode, after setting the primattrib,can not get the primattrib immediately,

above example, boolRoot should changed from 3 to 1,but not work;

This is Bug?

dreamerflyer19
This is Bug?

No, you can't write to the geometry being read.

jsmack

dreamerflyer19
This is Bug?

No, you can't write to the geometry being read.

but in spread sheet can see write attribute sucessed.

You can't read any changes from the geometry that you're applying from the same code.
Hope that makes sense.

shadesoforange
You can't read any changes from the geometry that you're applying from the same code.
Hope that makes sense.

Get that,thanks all.It seems Must use other array to controll this.

You can only read the geometry from the input and write to output. But cannot get the middle state in VEX.