GP32 raster-fx?


Just draw coloured rectangles, one after another each using a colour from a table (array) with no gaps. Then take the first colour in the table and store temp, then make a loop to itterate through the table copying table+1 to table. Then recover the colour from pos 1 you store earlier and stick it at the end of the table. The next time the screen is refreshed and the rectangles plotted again they would all effectively move up one position.

On it's own this would look slightly naff, so what you do is put a logo on top of the rectangles making sure one colour is your mask colour. Then you have a C64 effect whereby one colour in your graphic appears to have raster bars going behind it. This was what I did in X-Scape Gp32.

Hope that helps.

Paul K [StudioX64]
 
But doing raster fx with "normal" graphics is not the same.. as (imho) the idea of raster gfx is to push video chip to do something it was not planned for etc.. <_< Most if not all known raster fx that GP32 is capable to are documented (to some extend) and demonstrated in http://www.deadcoderssociety.tk :blink:
 
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