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Question by smoggach · May 30, 2014 at 02:40 PM · iosspritepolygon collider 2d

"Sprite outline generation failed" iOS.

I just updated to unity 4.5 and started getting an error in my logs when I run my app on a device.

"Sprite outline generation failed - could not read texture pixel data. Did you forget to make the texture readable?"

I've broken this message down as many ways as I can but there's no mention of it on google so I'm thinking it must be a new issue.

This happens when I try to add a PolygonCollider2D to an object at runtime. The collider works perfectly anyways but I'd really like to make this message go away.

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Answer by Landern · May 30, 2014 at 02:42 PM

Mark the texture type as advanced, enable read/write.

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avatar image smoggach · May 30, 2014 at 02:47 PM 0
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Thank you :)

avatar image nykwil · Sep 11, 2017 at 04:57 PM 0
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This only happens to me on iOS. We have a dynamic sprite system and lot's of possible sprites. I have to mark all my sprites as advanced on iOS?

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