OpenEuphoria

Re: 3D (isometric)

• Posted by MrSmily at AOL.COM Feb 10, 1999
• 396 views

>>Hi again!
>>Thanx for the URL!
>>I made a little procedure to do +-3D Isometric (Starcraft-like) texturing,
>>But it's very very slow and I need to speed it up!
>>Can You help me please ??
>>*********convert* (to use with mode 259)
>>global function convert(atom x, atom y, atom z)
>>  atom X,Y
>>  X=(x/400)*400+(y/400)*400
>>
>>  return {X,Y}
>>end function
>
>
>>X=(x/400)*400+(y/400)*400
>isn't this the same as X=x+y  ?
>
>>Y=(1-x/400)*300+(y/400)*300-2*z
>could simplify to  Y = (400 - x + y) * 0.75 - z - z
>
>Yikes! I hope my math is OK!!
>
>michael at igrin.co.nz

Actually, I got something like this for Y:

Y=(1-x/400)*300+(y/400)*300-2*z
Y=300-300*x/400+300*y/400-(z+z)
Y=300-.75*x+.75*y-z-z
Y=300+.75*(y-x)-z-z

MrSmily at aol.com