Why..!! And how?? | GameDev.net

Original Post

Nov 15, 2001 at 7:05 PM

What I''ve been trying to do is to use vertex structure in glMap2f and glEvalMesh, but they all seems to accpet only data structure as ctrlpoints[4][4][3] .. And I need to know how can I convert from my vertex structure, e.g struct float x; float y; float z; } VERTEX, *PVERTEX; to what I can do as VERTEX ctrlpoints[4][4];.... How do I go from simple data type as they use, to structs or even classes? Please help..

v71

Nov 17, 2001 at 3:08 PM

if i have grasped right you have ctrplt[4][4][3]
that''s to say a 4x4 matrix each of 3 more array entryes right ?
and you want to convert it into ctrlpts[4][4].x , y , z , am i right ?
try this

int n=4 ;
for ( j=0; jfor ( i=0; i{
dest[j].x=src[i][j][0];
dest[i][j].y=src[i][j][1];
dest[i][j].z=src[i][j][2];
}

v71

Nov 17, 2001 at 3:11 PM

Oh shit the post messed up my code, i hope you undedtand
that i have done two cycles

for ( j = 0 ; j< n ; j ++ )

and

for ( i = 0 ; i< n ; i ++ )

i hope this will be posted correctly
sorry again.

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