how to read the fourth value in vex

[andian0214]

how to read the fourth value in vex

 

[ikoon]

Hi, it should be

f@aaa = p@cost[3];

p@cost is vector4

[anim]

also

p@cost.w

or 

p@cost.a

[andian0214]

thanks guys ，but if i have fifth ，the ‘p’ can only read the fourth

[anim]

then use array for cost instead of float5

if your cost attribute was float array, then you can use

f@a = f[]@cost[4];

if for some reason you have to keep it float5 then you can sample the value like this for example

float cost[]  = point(0, "cost", @ptnum);
f@a = cost[4];

 

[andian0214]

1 hour ago, anim said:

then use array for cost instead of float5

if your cost attribute was float array, then you can use

f@a = f[]@cost[4];

if for some reason you have to keep it float5 then you can sample the value like this for example

float cost[]  = point(0, "cost", @ptnum);
f@a = cost[4];

 

cool  it works   thanks