Choose the transition effect for your slider using oik options > Nivo settings.
- nivo slider effect= parameter
- nivo slider effect=random
- nivo slider effect=sliceDownRight
- nivo slider effect=sliceDownLeft
- nivo slider effect=sliceUpRight
- nivo slider effect=sliceUpLeft
- nivo slider effect=sliceUpDown
- nivo slider effect=sliceUpDownLeft