Numerical Example

Use previous example of 64 x 32 texture map:

(s,t) = (0.5, 0.75) = (0000.8000H, 0000.C000H)

(u,v) = (20.0H, 18.0H) = (32,24)

Calculate a,b

a = fractional part of ( u - 0.5)

= Frac(32 - 0.5) = frac(31.5) = 0.5

= Frac(20.0H - 0.80H) = frac(1F.80H) = 0.8H

b = fractional part of ( v - 0.5)

= Frac(24 - 0.5) = frac(23.5) = 0.5

= Frac(18.0H - 0.80H) = frac(17.80H) = 0.8H

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