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Camera roll #18
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You still want to draw vertical lines. Doing anything different would be a lot more expensive (not possible on a 386). Also, drawing pixels one vertical column at the time would be the best approach for how VGA paging works. Offsetting the tilt before the vertical line drawing would be a quick/dirty solution:
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Do you know how the game/engine rolls the camera? Does the vertical line drawing function draw the line at an angle instead? Or does it render to a buffer and then rotate that? Or does it skew the image for a rough approximation of roll at low angles, like how this demo fakes moving the camera up and down by panning the image?
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