Bilinear Filtering

• Use the following equation to get texel color:

(1-a)(1-b)T00 + a(1- b) T10 + (1-a)b T01 + ab T11

a = fractional part of ( u - 0.5)

b = fractional part of (v - 0.5)

Define:

u0 = u - 0.5, v0 = v - 0.5

u1 = u0 + 1, v1 = v0 + 1

Then:

T00 = texel at (u0,v0)

T10 = texel at (u1,v0) , etc….

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