[2022-08-31T13:56:56Z WARN ruffle_core::display_object] Blend mode 'overlay' is unsupported and will not render correctly.
This is due to missing support for the 'overlay' blend mode, see #58.
[2022-10-25T01:11:18Z WARN ruffle_core::display_object] Blend mode 'darken' is unsupported and will not render correctly.
This is the real problem, without displaying it, the animation is visible. It's that "folded paper" texture that have to be transparent but isn't.
The overlay mode is used for the light spot that we can see in the expected behavior gif and aren't displayed properly either.
I also note that the characters and titles have some outline effect that doesn't render.
Oh that makes sense, thanks!
I played the swf with https://github.com/ruffle-rs/ruffle/pull/8262, and the darken blend mode for the paper texture seems to correctly blend with most of the objects, excepts the characters red clothes for some reason :
Expected behavior : https://youtu.be/lVlZYiAuy8I?t=24 red clothes aren't supposed to get that texture.
The scenes with other blend mode effects are broken :
Screen blend mode Expected : https://youtu.be/lVlZYiAuy8I?t=108 (that sunlight scene thingy)
Layer blend mode Expected : https://youtu.be/lVlZYiAuy8I?t=123 (looking at the background scene)
Expected : https://youtu.be/lVlZYiAuy8I?t=153 (showing dazzling light sphere in her hand scene)
Overlay blend mode Expected : the light spot scene in OP's gif
Beside those few short scenes and the lacking outline effect, it renders properly.
I believe all the scenes seem to be working properly blend mode wise on the latest desktop nightly now save for two in particular i've noticed. This scene.
And this scene.