Add dedicated animation documentation

[kathleenhang]

Closes #1258

I wrote a draft for the improved animation documentation which consists of:

• demonstration example
• command line options
• hotkey interactions
• supported file types
• time units

I used InterpolationTest.glb for the example since it was personally the most helpful animation file for me to better understand how animations work in F3D. Being new to 3D graphics, the idea of multiple animation sequences attached to one model was quite confusing for me at first.

This file is currently only available for F3D developers to download. I wonder if F3D can have an official download link for regular F3D users? That way, they can load up a good example of an animation-supported file and play around with it to better understand animation capability within F3D.

Currently, it seems most of the available example model files do not clearly demonstrate much of the animation aspect.

Feedback appreciated!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.57%. Comparing base (9992753) to head (cd4741d).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1423      +/-   ##
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+ Coverage   96.55%   96.57%   +0.01%     
==========================================
  Files         103      103              
  Lines        7555     7679     +124     
==========================================
+ Hits         7295     7416     +121     
- Misses        260      263       +3     

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[kathleenhang]

Okay fixed! How about the demonstration images? Are those good? I was planning to redo it with consistent image dimensions. The current one is a quick draft.

[mwestphal]

Okay fixed! How about the demonstration images? Are those good? I was planning to redo it with consistent image dimensions. The current one is a quick draft.

I did not check yes, could you add clickable links in the description :)

[kathleenhang]

Okay fixed! How about the demonstration images? Are those good? I was planning to redo it with consistent image dimensions. The current one is a quick draft.

I did not check yes, could you add clickable links in the description :)

Here is the link to the images:
https://github.com/f3d-app/f3d/blob/47b4d0629adc853e34071e469a95dd7cb0737a61/doc/user/ANIMATIONS.md

Are you able to see this? I am not sure if it is private. Here is another link that may work too:
https://raw.githubusercontent.com/f3d-app/f3d/47b4d0629adc853e34071e469a95dd7cb0737a61/doc/user/ANIMATIONS.md

[mwestphal]

Are you able to see this?

Indeed, it works!

And indeed, we should generate cleaner screenshots :)

[kathleenhang]

Thanks for the feedback! I just updated the screenshots and the introduction.

[mwestphal]

could you share these new screenshots ?

[mwestphal]

https://github.com/f3d-app/f3d/blob/cd4741db840f1c26b6be56566ade45e00c0bd438/doc/user/ANIMATIONS.md looks great!