notes.md

HLSL decompiling

• x + 4294967295u = x - 1u

• mad(a, b, c) = (a * b) + c

• exp2(log2(abs(x)) * y) = pow(x, y)

• exp2(log2(x) * y) = pow(x, y)

• exp2(y * log2(x)) = pow(x, y)

• ((b-a) * t) + a = lerp(a, b, t)

• (t * (b-a)) + a = lerp(a, b, t)

• (1-t)*a + t*b = lerp(a, b, t)

• b*t + (a*(1-t)) = lerp(a, b, t)

• mad((b-a), t, a) = lerp(a, b, t)

• mad(t, (b-a), a) = lerp(a, b, t)

• log2(x) = log10(x)/log10(2)

• log2(x*y) = log2(x) + log2(y)

• log2(x) * y = log10(x) * (z*log10(2))

• log10(x) = log2(x) * log10(2)

• log10(x) = log(x) / log(10)

• exp2(x) = log10(x) * (z*log10(2))

• 0.416666657 = 1 / 2.4