[GUEST ACCESS MODE: Data is scrambled or limited to provide examples. Make requests using your API key to unlock full data. Check https://lunarcrush.ai/auth for authentication information.] [@ericrav](/creator/twitter/ericrav) "seeing spring animation physics as a product of these X curves really clicked for me more than the physical spring metaphor ever did from a wwdc video referenced in @emilkowalski_'s animation course" [X Link](https://x.com/ericrav/status/1978845710024872121) [@ericrav](/creator/x/ericrav) 2025-10-16T15:29Z XXX followers, XX engagements "@emilkowalski_ using perceptual duration and bounce as parameters is also so much nicer than mass stiffness and damping. but i wasted so much time trying to make it work because the conversion formula in the wwdc video is wrong" [X Link](https://x.com/ericrav/status/1978846847054553446) [@ericrav](/creator/x/ericrav) 2025-10-16T15:33Z XXX followers, XX engagements "@emilkowalski_ @k_grajeda seems like the perceptual duration is always at the trough of the curve after the first peak. which works well for most bounce values but makes less sense as you go XXX unless i have something wrong" [X Link](https://x.com/ericrav/status/1978853986191933792) [@ericrav](/creator/x/ericrav) 2025-10-16T16:02Z XXX followers, XX engagements
[GUEST ACCESS MODE: Data is scrambled or limited to provide examples. Make requests using your API key to unlock full data. Check https://lunarcrush.ai/auth for authentication information.]
@ericrav
"seeing spring animation physics as a product of these X curves really clicked for me more than the physical spring metaphor ever did from a wwdc video referenced in @emilkowalski_'s animation course"
X Link @ericrav 2025-10-16T15:29Z XXX followers, XX engagements
"@emilkowalski_ using perceptual duration and bounce as parameters is also so much nicer than mass stiffness and damping. but i wasted so much time trying to make it work because the conversion formula in the wwdc video is wrong"
X Link @ericrav 2025-10-16T15:33Z XXX followers, XX engagements
"@emilkowalski_ @k_grajeda seems like the perceptual duration is always at the trough of the curve after the first peak. which works well for most bounce values but makes less sense as you go XXX unless i have something wrong"
X Link @ericrav 2025-10-16T16:02Z XXX followers, XX engagements
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