Making scrollable backgrounds: Difference between revisions
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Scrolling backgrounds are formed using a set of sprites positioned directly next to each other. | Scrolling backgrounds are formed using a set of [[sprites]] positioned directly next to each other. A sprite is only 16 pixels wide, so many are needed to fill the screen horizontally. The [[Sticky bit]] is often used to make this simpler. A set of 21 chained sprites can be used to make a single full-screen scrolling background layer. | ||
==Updating VRAM== | ==Updating VRAM== | ||
(todo) | |||
todo | |||
==Demos== | ==Demos== | ||
Interactive demos with source can be found [http://smkdan.eludevisibility.org/neo/scroll_02.zip here]. | |||
(todo: clean it up, make scroll3, finish documenting it here) | |||
todo: clean it up, make scroll3, finish documenting it here | |||
[[Category:Code]] | [[Category:Code]] | ||
Revision as of 08:18, 5 June 2015
Scrolling backgrounds are formed using a set of sprites positioned directly next to each other. A sprite is only 16 pixels wide, so many are needed to fill the screen horizontally. The Sticky bit is often used to make this simpler. A set of 21 chained sprites can be used to make a single full-screen scrolling background layer.
Updating VRAM
(todo)
Demos
Interactive demos with source can be found here.
(todo: clean it up, make scroll3, finish documenting it here)