cheetah wip

[abraXas]

first try usingcheetah.jpg cat_01.jpg zspheres. i was going for a not much detailed model for a cat run animation, but i can´t stop modelling. damn zbrush addiction.

[LynneMitchell]

Looks like a cheetah! The back legs like a bit "S" curved to me (could be the angle).

[Sebcesoir]

very nice start!

nice zsphere model..
Will be great once you sculpt muscles etc...

cool!

[abraXas]

thanks a lot. Sebcesoir, i will do. hope not to dissapoint :lol:

[Bernard Caumes]

good start. It's so rare to see an animal modeling in this forum.
but why do u call it cheeta ?
can't wait to see it moove !

[abraXas]

bernard, look here:


http://www.bigcatrescue.org/cheetah.htm

[abraXas]

BTW, are u calling me "animal" ? :D

[saltapiedras]

Buen comienzo abraxas.:tu: :tu: :tu:

¿Piensas hacer un modelo 3d totalmente acabado o una escena 2.5? Me gustaría saber los pasos referentes al mapa de desplazamiento que no controlo y al texturizado. Yo casi siempre modelo la parte del objeto que se va a ver en la ilustración y dejo el resto sin hacer. ¿Podrías instruírme porfa?

[abraXas]

saltapiedras: pues sí, será un modelo 3d. en principio iba a ser de baja resolución, para centrarme en la animación, pero ya sabes lo que pasa con esto...si no me arrancan del zbrush no se parar. así que lo detallaré todo lo que pueda, exportaré el obj. en el 2º nivel , y prepararé la animación en messiah studio. cuando vea que queda bien, le aplicaré los mapas de desplazamiento y de normales (messiah studio los renderiza perfectamente y de forma sencilla, no como LW, que es mi otro programa 3d). te recomiendo que te bajes el zmapper, si no lo has hecho ya. su manual da una buena explicación acerca de todo esto (yo estoy algo verde en el asunto). pero en principio, creo que el uso de desplazamientos no tiene mucho sentido aplicado a la ilustración , que parece ser lo que a tí más te interesa. en cuanto al texturizado, sólo tienes que crear una textura con buena resolución, abrir el projection master y darle caña. no sé si ya sabrías todo esto, y si puedo ayudarte en algo más, me lo dices.

un saludo

[ilusiondigital]

No hagas que saltapiedras pase a otro programa 3d jejejeje, por cierto, muy buen felino, espero ver mas avances

[Bernard Caumes]

lol ! :lol:
I mean an animal model.

[Fergus]

Desde luego, la forma es de guepardo 100%, con esa silueta medio gato/medio galgo que los caracteriza.... aunque la textura es un poco anárquica, no? :lol: Yo le ordenaría un poquito más los puntos y pondría más énfasis en la línea negra que va desde el lacrimal hacia abajo.

Me gusta mucho :D

[abraXas]

tranquilo, fergus, todo llegará. la textura, tal y como está, me sirve de refuerzo visual para el modelado

[abraXas]

some sculptingcheetah_02.jpg

[Fergus]

Eh, qué guapo... No olvides que las uñas de los guepardos no son retráctiles... :D

[abraXas]

no ha sido facil hacerle las uñas, no se estaba quieto....gracias x tu comentario

[Obelisk79]

Looks great so far! However a little bit of criticism if I might add. Some of the muscle definition that you've sculpted just doesnt feel very realistic partifularly in the rib area. I can't pinpoint it, but something is just not quite right.

Regardless, however this is an excellent model.

[aminuts]

hi abraxas

difference between first and second posts....light and day!

remember tho that if you are animating and adding fur later you only need the muscle structure that's needed for movement in the animation. But that's not to say zb isn't fun to get lost in and learn more about anatomy either.

Great improvement and hope we get to see a little of the animation!

[abraXas]

sorry 4 this but i just can´t help to show it. just playin with fibers material.
some serious stuff coming soon......dog.jpg

[Blaine91555]

A sheepcheetah :lol:

[abraXas]

don´t know, maybe i´ll go back to the sheepcheetah....cheetah_03.jpg cheetah_04.jpg

[Fergus]

Ahí si vas bien encaminado... casi perfecto. A lo mejor podrías usar el material del guepardoveja en los pelillos esos del lomo y el pecho, que se ven como engominaos.

El resto, impecable.

[abraXas]

fergus, he probado a aplicar parcialmente el material para fibras en el PM, pero no lo consigo, parece que o lo aplicas completamente al modelo, o no se quiere combinar. gracias por tu amable comentario.

[shserge]

Hello! Good modelling! Can you explain, how do you do such smoothiness in modelling - it's perfect! Do you use only smooth brush or not?

[abraXas]

basically:

1- standard/inflat
2- pinch
3- smooth

all this with lots of vertex moving, to get a good shape instead of using nudge or add. it´s just a matter of trial and error, tryin low and high values in your transform tools, till you get the results you want.

[Tartan]

Looks great Abraxas :) Nice use of Zspheres! :tu:

[abraXas]

thx m8

[shserge]

Thanks!:tu:

[saltapiedras]

Va quedando, ¿eh? Estoy con Fergus en lo de los pelos. Deberían ser más finos, cortos y unidos. Yo hago unos cuantos con ZSpheres y los voy sumando con MM, claro que eso lo hago antes de texturizar.

[abraXas]

lo tendre en cuenta para el proximo bicho.

[Blaine91555]

Much better than the sheepcheetah :lol: Nice work :tu:

[abraXas]

4 images of the cat run loop animation, and 1 clip cheetah_05.jpg with a side view

[lemonnado]

Cool Cat! The animation is looking a tad stiff. Considering full speed the cat would throw it's hind paws almost in front of the shoulder while the front paws are almost touching the tail root. The back is bend like a bow, the whole animal is throwing everything into that motion. The back works like a bow and the extremities follow through the entire range of motion. Those are FAST 8-). AND they LIKE IT!
Lemo

This copy I found on the web is going into the direction I try to point out:
Your model can do that!
http://sja.ucdavis.edu/images/art_03.jpg

[saltapiedras]

Vaya, parece que está vivo. :tu: :tu: :tu:

[abraXas]

Lem, thx for ur advice. Let´s go for it.

Sí, Saltapiedras, ahora tiene que entrenar bastante....:p

[Blaine91555]

Great:tu:

[Ron Harris]

Very fine work and I love the animation...That cheetah is hauling @ss at rocket speed..:tu: :tu: :tu: :tu: :tu:

ron
catfishmn@aol.com

[ilusiondigital]

Que bueno, va teniendo muy buena pinta :tu:

[abraXas]

ty ppl, i´ve done some fixingcheetah_06.jpg

[lemonnado]

That look much better! You're getting there. If you take a close look at it, you can see that his back is curving in as if it would break soon. If you can, try and see if you can get it just the oposite way. You will instantly see the difference. Try to bend your back as far back as the cheeta's (under medical supervision please) and you also see what I am refering to ;-).
:tu::tu:
Lemo

[dogbone]

Try to bend your back as far back as the cheeta's

bendy back (http://video.google.com/videoplay?docid=841651212169523424)

[aminuts]

ouch my poor old bones ache just watching that video dogbone!

I agree with lemo.....you almost got it.....keep going!

[abraXas]

bending back the cat. this begins to look like a running cheetahcheetah_07.jpg

[Bas Mazur]

Nice movie! Jus one crit, a head of a cheetah is not going up and down so much while he is running.

[abraXas]

bas, you are right

[bpmufx]

I agree w Bas. However you need to be clear on the cadence you're after, If she's running full tilt, both head and tail tend to keep real still and on the same plane while the body bows within. I think these are the details that make an animal like this seem so incredible to watch. Really nice work.

[Bas Mazur]

:tu: looks better now! keep going :tu:

[abraXas]

following mr. bpmufx´s advice

[abraXas]

ooops, sorry, zip file....:p

[Blaine91555]

Just keeps gettin better :tu:

[bpmufx]

wow man, nice work, she's haulin!

[Jason Belec]

AbraXas, this is getting pretty good. I noticed a few things if I might add them. The tail, especially the tip must be alive, it is not only the counterbalance of a cheetah, it is the rudder and is constantly in motion.

The latest animation improves the transition of power from rear to front, but, the front of the cheetah is lower to the ground and for directional control, especially the legs. The rear is where almost all the power comes from in extremely explosive bursts. All pivoting around the mide section of the body between hips and chest.

Everything moves in these animals, and I think you are possibly having trouble from the fact you are setting your animation up in a straight line. Cheetahs don't drag race. ;) Front and fore limbs almsot act independantly, guided and balanced by the tail, following the head which follows the prey.

Your current animation is rather rigid, and betetr exemplifies the structure of a horse or dog.

This is all meant as constructive to help improve, and in no way implys your work thus far isn't worth the effort. You can also toss it all this out, it's your animation. ;)

[Frenchy Pilou]

...but your beast run without bounce jump!!!
It's not a horse :D
Bon courage!
Pilou

[abraXas]

Jason, i´ve been usin this photo sequence of a running greyhound as my only visual reference, perhaps that explains about stiffness and straight running. if i´m getting improvement it´s due to all the good advices i,ve been receiving, like this one of yours. thx for ur time. i´ll try to give this kitty the hunter look he deserves.

Frenchy mon ami, sorry but i don´t know what u refer whit the bounce jump, can u explain a little bit? :p


locomotion.jpg

[Jason Belec]

Cheetah:
http://www.predatorconservation.com/video/cheetah%20running%20slowmo.htm

Funny, but good cheetah motion:
http://www.killsometime.com/video/video.asp?ID=362


Dog:
http://www.ellsbury.com/cheetah/running.MPG

I think this is clear on what Frenchy Pilou and I have mentioned.

[abraXas]

thank uuuuuuuuuuuuuuuuuuuuuuuu alot