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Dark GDK / Draw from the bottom?

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Manga Tiger Boy
15
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Joined: 24th Aug 2009
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Posted: 24th Sep 2010 04:42
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How can I get my game to draw an image slowly replacing a mildly different image beneath it? I don't want to fade it, but rather have it draw a few rows of pixels at a time, without scaling. How can I accomplish this?

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dark coder
22
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Joined: 6th Oct 2002
Location: Japan
Posted: 24th Sep 2010 05:00 Edited at: 24th Sep 2010 05:01
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Use a sprite and the 'dbSizeSprite' function, along with 'dbSetSpriteTextureCoordinates' to counter the distortion. Let's say you wanted to fade the image from the bottom, when the fading the overlaid image you would set the vertical size to: 'imageHeight*fade', and the bottom two vertex Vs(U remains the same) to 'fade', where fade is a value between 0..1.

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Manga Tiger Boy
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Posted: 18th Oct 2010 07:14
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Coolio. Thanks dark!

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