Artwork > Finished Works and Works in Progress
Springy
cooldude234:
--- Quote from: johnar on March 30, 2013, 04:25:17 pm ---Yea. I pretty well stick to 24fps, so thats where i get the '2 frames close 3 frames open' thing.
I suppose using a faster frame rate would also increase the size of the finished video.
--- End quote ---
Yup, also I try to stick with a 30 frames playback. It's the standard for movie frame playback rate (there not really any technical word for it :P ).
Raxx:
Like always, nice and bizarre, johnar ;) It looks pretty good, especially considering that it's animated in Anim8or. I do feel that the physics need to be tweaked a bit more. His initial hopping does not have enough forward momentum in its movement--it looks like that animation would work only if he was hopping in place. I think if you made the bottom part of the spring (his "feet"), angle so that they face more towards the direction he's landing in anticipation of said landing (but only in the last quarter of each hop), it'd look more realistic. Kind of like how you walk and plant your heel first and then the toes follow.
The center of gravity and center of rotation for the backflip seems to be off. Its current motion seems to suggest that the heaviest part of its body is in its feet and it's the feet that is dragging the rest of the body along with it (kind of like how if you put a rock in a plastic bag and throw the bag, the rock influences its rotation in the air the most). You need to make the center of rotation be nearly equal to that of its center of gravity, and the center of gravity needs to have constant gravitic translation while the rotation motion is also constant around that center of gravity. Right now both are a bit unequal and inconstant. What I said probably doesn't make much sense, but just look at some vids of backflips if you haven't already ;)
Hope that helps. I know this wasn't an all-out serious animation, but it'd be interesting if you actually went somewhere with this.
johnar:
Hi Raxx, and thanks for the input. The things you mentioned are also the things which i realise are not quite right as well. Trust you to spot them. :D
--- Quote ---I think if you made the bottom part of the spring (his "feet"), angle so that they face more towards the direction he's landing in anticipation of said landing
--- End quote ---
Yes, i have actually tried for that, but i see that it does need to be more obvious. Have got a morph target in the bottom of the spring for the movement you have explained, (the 'heel toe' thing), and will tweak that up to make it more exagerated. (noticeable). You can see that bottom movement in the last couple of fwd bounces, but now realise that its far too subtle. Will sort that out.
I was wondering about those first few jumps being not quite right.
--- Quote ---His initial hopping does not have enough forward momentum in its movement
--- End quote ---
Thats it. Cheers. I'll work on it.
--- Quote ---The center of gravity and center of rotation for the backflip seems to be off.
--- End quote ---
I do understand what you are saying. The backflips were a bit of a problem from the start. The simple rig that i've used made it a bit difficult to get it 'physically' correct. Because it is rigged 'from the bottom up', then only the upper body is bendable with the rig. This anim8ion was done straight from my head, so I will take your advice and study some backflips and try to get it more equal, constant and realistic.
Appreciate your 'eagle eye' and the decent explanations of your observations. ;) . Gold. 8)
Will post updated video in the next day or so. Thanxx.
johnar:
I think his forward jump looks better now. Never realised how 'out' it was till i started fixing it.
Only the fwd jumps here;
edit/update.
dead link replaced with springy final.
Will work on the backflip next.
geez, its 3 in the morning ::)
Blick Fang:
The animation is great johnar!
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