#aspectratioposting

[chainswordcs2]

for anyone who hasn't played this boss fight in-game, this is what it would look like (in 4:3)

from this perspective, the effect is subtle and difficult to notice. but in the stabilized footage, the problem is obvious. funny how that works.

In Yoshi's Island, the Raphael the Raven boss battle uses the Super FX chip to rotate the battlefield. On an emulator or later official rereleases of the game that support a 1:1 perfect pixel ratio, the game is displayed in an 8:7 aspect ratio, whereby the moon in the middle is perfectly circular.

However, when playing the SNES release on original hardware, the output is stretched to a 4:3 aspect ratio. This causes the moon to become stretched horizontally in relation to the screen, however, as the screen keeps rotating, the moon keeps being stretched along a different axis in relation to the scene.

The above animation stabilizes footage of the battle to get rid of the screen rotation, making the different deformations of the moon readily apparent. Note that every element of the screen is deformed in some way due to the rotation; the moon is merely the most visible.

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