Warning when whitespace stripping with meshes

[NathanSweet]

No description provided.

[pharan]

Relevant thread:
http://esotericsoftware.com/forum/Patch-for-trimmed-atlas-meshes-in-c-sharp-unity-4973

[pharan]

Putting old ideas here:
SHOW A WARNING

• Spine detects untrimmed images, regardless of them being used as meshes. Show a warning. and/or...
• Spine detects detect untrimmed images the moment they are used with meshes. Show a warning. and/or...
• Spine detects untrimmed images among used images when the project is loaded. Show a warning as a toast. and/or...
• The detection has a sensitivity. 40px default?

or?

SPINE GENERATES CROPPING RECTANGLES

• Spine generates cropping rectangles equivalent to how the images would end up if whitespace-stripped.
• The cropping rectangles account for mesh UVs. Always keep the rectangles big enough so the UVs fit in them.
• Allow the Texture Packer to receive and use these cropping rectangles as information for it to pack the images as atlas regions.

[pharan]

http://esotericsoftware.com/forum/Texture-Packer-Settings-for-Spine-Unity-6047

[NathanSweet]

3.6.01-beta has a warning when using Create atlas with data export and the project has a mesh. Nothing can be done if running the texture packer on an arbitrary folder of images.

In the future we should allow polygons to be packed.