Export to PNG results in "ghosted" images

Wwintaamero · 2016年9月18日

Hi there I'm trying to export my file as a PNG sequence, but what turns up when I leave the background transparent is a "ghosted" image. As if each frame exported one on top of the other instead of one after another.

My settings are as follows:

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The result:

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What's weird is that I'm using the same settings as another project I exported just recently and this is the only sequence that has these results.

I've also tried restarting Spine and resetting my frame rate to 30 fps, but still no dice.

Wwintaamero · 2016年9月18日

Pharan · 2016年9月20日

thanks for reporting!
This is really weird. First time I've seen it too.

If this is specific to this project, you can send your project to contact@esotericsoftware.com and we'll try to take a closer look at what might be causing it.

Wwintaamero · 2016年9月27日

Will do, thank you!

Mario · 2016年9月28日

Thanks for the repro case. I tried it locally and found a different issue. I opened an issue on the tracker here for you to follow Export to PNG sequence has artifacts · Issue #115 · EsotericSoftware/spine-editor · GitHub

Wwintaamero · 2016年9月28日

Hi there, and thank you! I'll follow this as it gets taken apart.

I would also just like to note that since I couldn't export with transparencies properly, I opted to export it with a green background instead so that my client can check the animation/isolate the frames for possible use until I resolve the transparency issue. The file I attached had the same settings where the background was color-filled. Would just like to confirm if you reset the exported background to transparent before continuing with the export.

Nate · 2016年11月3日

Sorry for the long delay. Your massive image sizes coupled with movement during animations result in exported PNG sizes of 4762 x 4665 (for the jump animation). This actually exports just fine on my workstation which uses a Asus Strix DC3OC 6gb GTX 980 Ti. We are using OpenGL for image export, so unfortunately we are at OpenGL's mercy with this problem. I suggest not using such large images for frame by frame animation. Just the jump animation at 24 FPS exports to 71.4MB! You can scale the root bone before you export. You can export to JSON and the import with a scale to use smaller images. If using a runtime, you can animate in Spine with smaller images, than use larger (or smaller) images at runtime.