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Question by Polymo · Aug 29, 2013 at 12:28 PM · texture2drectatlas

multiple Texture2D.PackTextures, same rects?

Hi,
if i have for example two similar sequences of textures (same count, same resolutions) and i PackTextures() them,
can i be sure that the resulting rects will be the same too? I need it for my character customization, which i want to extend.
It seems to be that way, i just need to be sure, so that it doesn't break accidentaly later on.

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avatar image Polymo · Sep 01, 2013 at 12:52 PM 0
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should i ask that somewhere else?

avatar image Polymo · Sep 03, 2013 at 05:51 AM 0
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ping. .

avatar image Polymo · Sep 04, 2013 at 10:42 AM 0
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Ping() . .

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Answer by FrimaMickD · Sep 04, 2013 at 03:05 PM

For someone to really be able to answer you this, they would need access to the source code, which I don't. I believe that if you have your texture always the same size and always in the same order, the PackTextures() function will always return the same result.

If later on you add a new texture to Pack that is not of the same size, than I think it's possible this texture will be accounted for first. I base my answer on the fact I did write a custom Atlas function that was first sorting the texture by size before packing them in the atlas.

Hope this helps!

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avatar image Polymo · Sep 05, 2013 at 09:55 AM 0
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Could you tell me, what functions you used for your self programmed atlasing? I thought about program$$anonymous$$g it myself too, just to be in control of its inner workings.

avatar image Polymo · Sep 05, 2013 at 10:10 AM 0
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Ok, looking at SetPixels, it's fairly trivial. I'll roll my own.

avatar image FrimaMickD · Sep 05, 2013 at 12:24 PM 0
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You can use SetPixels and Apply() to do that but be aware that it is VERY slow and need you to have your texture in a certain format and the "Read/Write Enabled" flag on. Just so you know! :)

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