1 reply to this topic

[sky_blue]

hi,

how do i convert the indices of a height map array(i,j) to the (x,y) points on the object. for example, suppose i have an nxn height map array and a sphere having radius 'R'. i'm not being able to understand the following mapping

for (i=0 to n){

for (j=0 to n){

x = j-n/2
y = i-n/2

x = x * R/(n/2)
y = y * R/(n/2)
............

}

}

[dave_]

You've got the answer on gamedev.net already.