Sprite compression (Generation I): Difference between revisions
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*Backsprites are internally 32x32 pixels (0x44). Usually, these backsprites also have a little white space at the bottom (hidden by the battle menu). |
*Backsprites are internally 32x32 pixels (0x44). Usually, these backsprites also have a little white space at the bottom (hidden by the battle menu). |
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*White space occupies smaller sprites to add up to 56x56. |
*White space occupies smaller sprites to add up to 56x56. |
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*Unofficially, a .2bpp file can be converted into a compressed Pokémon sprite using |
*Unofficially, a .2bpp file can be converted into a compressed Pokémon sprite using tools (see external links) (based on the previous work of the GB Dev and Skeetendo communities). |
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*It is possible for the sprite to be flipped for a non-00 value in memory address 0xD0AA ([[Pokémon Red and Blue]]) or 0xD0A9 ([[Pokémon Yellow]]). The [[inverse sprites glitch]] corrupts these memory addresses, possibly leading to glitched sprites. |
*It is possible for the sprite to be flipped for a non-00 value in memory address 0xD0AA ([[Pokémon Red and Blue]]) or 0xD0A9 ([[Pokémon Yellow]]). The [[inverse sprites glitch]] corrupts these memory addresses, possibly leading to glitched sprites. |
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[[File:Sprite compression sample.png|thumb|left|160px|Sample image loaded using [[arbitrary sprites]] ([[GlitchDex/Y:230|9ゥ (E6)]] with default palette); exported drawing of Torchic from Game Boy Camera]] |
[[File:Sprite compression sample.png|thumb|left|160px|Sample image loaded using [[arbitrary sprites]] ([[GlitchDex/Y:230|9ゥ (E6)]] with default palette); exported drawing of Torchic from Game Boy Camera]] |
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==External links== |
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*[https://rgmechex.com/tech/gen1decompress.html Retro Game Mechanics Explained's tool to compress and decompress sprites online (supports PNGs)] |
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*"Sprite import tools for RBY" can be downloaded within Evie's Google Sites backup [https://drive.google.com/drive/folders/1DAVPYay9sAuXwi4qXbDQfPU2sIDI_mXH?usp=sharing here] |
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[[Category:Generation I mechanics]] |
[[Category:Generation I mechanics]] |