Full chances of possible shiny Pokémon encounter in Pokémon 3D:Actually i don't know. Is why I am asking.
Ordinary Encounter: 1/8192 (or 0.01220703125...%)
Pokémon in a Hidden Grotto: 1/4096 (or 0.0244140625...%)
Hatching a Pokémon from the Odd Egg event: 7/50 (or 14%).