Yeah I just ran a test with Artemis bring up into workshop animation in Chapter 3, at rest my CPU sits at 10% 3+ GHz speed, but when the animation kicks in, it runs at near 70% with 2.55 GHz speed. My VRAM not affected at all. I don't know how Renpy works but it is a bit bizarre if it is a simple video file being played. Or does the engine compile the video from frames simultaneously? The same animation plays at startup of main menu and it doesn't lag. I am so confused. I think my CPU old enough to be bottlenecked by it.Short version: Basically yes, but more CPU related.
From some searching, it looks like there is an issue with Renpy 8 and some methods of encoding videos. The result is significantly more CPU load and animation playback issues. It seems to be more of an issue as the animation and game size grow larger.
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