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Baking animation frames to a texture at runtime

ajekov

Hey guys,

I have exported a .json file with atlas for animation with a runtime. I want to use the runtime to bake all the frames of this animation to a grid inside a texture at runtime.

Problem is I cannot understand how to get each frame size and origin? When I export as png grid from Spine it does exactly what I want to do with the runtime. Is this only possible with Spine, or the runtimes can also do it?

Thank you for your time!

Nate

If I understand, you have an animation and you want to know the maximum size of any frame? You'll need pose the skeleton at each frame, then look at region and mesh attachment vertices to get the maximum bounds (Skeleton getBounds does that). Here is TypeScript code showing how it is done (should be easy to port to other languages):
spine-runtimes/Player.ts at 3.7-beta
This samples the animation 100 times at equal intervals. You likely want do to it for each of the frames you are rendering.