easeOutCubic8()

u8 fl::easeOutCubic8

(

u8

i

)

8-bit cubic ease-out function Takes an input value 0-255 and returns an eased value 0-255 More pronounced deceleration than quadratic

Definition at line 130 of file ease.cpp.hpp.

                                    {
    // ease-out cubic: 1 - (1-t)³
    // For 8-bit: y = MAX - (MAX-i)³ / MAX²
    constexpr u16 MAX = 0xFF;
    constexpr u32 DENOM = (u32)MAX * MAX;
    constexpr u32 ROUND = DENOM >> 1;
 
    u32 d = MAX - i;      // (MAX - i)
    u32 cube = d * d * d; // (MAX-i)³
    u32 num = cube + ROUND;
    return u8(MAX - (num / DENOM));
}

References FL_NO_EXCEPT.

Referenced by ease8(), and ease8().

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