Games bc.BuildPatternCache not available anymore

Gunther

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Longtime User
Hello,

as you may see here in the screenshot the edges are very steppy althrough the original PNG of the green circle has a proper edge.

Any way to smoothen that edges?

The PNG is loaded via Tiled to the body with alias set to 1 degree. The yellow one behind is added by painting a bc and added to the Graphcache. And this is looking fine.

B4X:
    bc.Initialize(bmp.Width, bmp.Height)
    bc.CopyPixelsFromBitmap(bmp)
    bc.BuildPatternCache(IgnoreSemiTransparent) '  < ---- not available

upload_2019-1-21_16-50-14.png
 
Last edited:

Gunther

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Hi,

here is the TestProject.

One ball is rotating the other is fixed to compare. AntiAlias is enabled for both.

With "Q" you may change the background color. Try to get a bright one (yellow or so)
 

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  • TestProject.zip
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Erel

B4X founder
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The image is antialiased. This means that when you rotate it the semitransparent border is rotated as well and the result is not smooth. The semitransparent edge matches a specific layout which is not kept during rotation.

You will get better results with an image without antialiasing and with a lighter border. Though it will not be as sharp as drawing the circle yourself.
 

Gunther

Active Member
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Longtime User
Thanks, you mentioned something like this already in the AngryBirds Example concerning the Hook but without the rotation impact.
 
Last edited:
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