ZBrushCentral

3D printing sculpt_Umbra

This is a concept sculpt for an anti-hero called “Umbra” that im using for a personal project. He’s based on several ideas that ive seen before

I was thinking of getting this guy printed out by 3dcreationlab.com but before I do that I want some justification on the mesh. I was keeping in mind the things that Jeff said on the video tutorials but as i've never built a character in this way before.

The current poly count is about 4 million I’ll decimate him in due course
[UMBRA.jpg]
so please be a critic and spot errors, (I think that the spike horns could cause errors - anyone agree?)

thanks Jack

Ok, I’m going to try to be as thorough as possible here.

[attach=200192]attachment_1000.jpg[/attach]

A: This is just a conceptual observation. The top part looks like a mask, but seems to become part of the character at the back of the head. I’m not sure there’s a “right answer” for it, but right now it looks like a helmet and then it doesn’t. I hope you get what I mean.

B: Clavicles generally point upward at the shoulder area. Feel and observe your own for reference or look up photos of it online.
http://www.mnsu.edu/emuseum/biology/humananatomy/skeletal/shoulder/clavicle1.jpg

C: When muscles move, their geometry changes. I’m guessing you sculpted this in a neutral position and posed it? You need to take into account the muscle changes in the new pose. Right now, that deltoid looks stretched in parts and flattened in others.

D: There’s a gap here that’s too wide. I’m guessing it’s from having sculpted it in a neutral pose and rotating the arm from a position that was too low, causing it to pivot down on one side and slightly up and out on the other. Look at a shoulder ball joint and cup.
http://comps.fotosearch.com/comp/LIF/LIF151/shoulder-joint-showing_~CA202030.jpg
Your rotation axis should be roughly in the center of the ball of the humerus.

E: Clock folds can be tricky. Check out this page.
http://en.9jcg.com/comm_pages/blog_content-art-180.htm
Generally, you shouldn’t have folds everywhere, only where the underlying structure, in this case a leg, would cause it to fold, wrinkle or distort.

F: Another style concern. The right boot is cool looking. I like the leather rivet look and the chains are nicely done. The left foot looks like it was forgotten a little. At the very least, I’d say put the rivets in on both sides for believability.

G: The trapezius looks too big and the sternomastoid is invisible.
http://www.stayfitbug.com/wp-content/uploads/2009/09/strong_neck_muscles.jpg
The sternomastoid is essential. It’s one of those muscles that really defines the shape of a neck and is really really obvious when it’s absent.

H: The muscles of the triceps look flattened and stretched in a similar fashion as the other distortion issues. Also, the elbow looks absent. Finally, someone with such a muscular build would have alot of definition in this part of the arm, particularly in the forearm area.
http://www.criticalbench.com/images/wrist-curl-forearm.jpg
http://farm4.static.flickr.com/3254/2748632031_28bfb7c6b0_o.jpg
http://farm4.static.flickr.com/3043/2697712169_343f752d0e.jpg

I: The scapula is covered in muscle so you wouldn’t see a dip in the center that deep.
http://2.bp.blogspot.com/_tYTC9bWwtL0/SWjtZOYn3-I/AAAAAAAAAFA/F5qyO2nWJOk/s320/big-back-muscles.jpg
http://1.bp.blogspot.com/_yk6g4hFfTvE/R7W1u5S2xTI/AAAAAAAAAN4/j9lC5BgDBD0/s320/e9c28-dex.jpg
http://www.istockphoto.com/file_thumbview_approve/936564/2/istockphoto_936564-muscular-back.jpg

J: Another cloth thing. The cloth should probably be draping or somewhat stretched horizontally over the butt. That or if it’s a tighter cloth, the folds should radiate out from there since that would be what causes the cloth to fold.
http://www.uncrate.com/men/images/2008/05/bonobos.jpg
http://www.bicycleclothing.com/patrol-rain-pants-back.jpg
http://www.thesnowboardshop.co.uk/images/special-blend-dutchess-pants-rear.jpg

The final critique is another style issue. The claw horns look more like soft tentacles. They lack bone structure or anything that would separate them from the flesh, so they looked like nails, bone claws or something.

Anyway, I hope that helps. Over all it looks promising, but if you find yourself struggling to make a form work, get some reference photos.

Attachments

attachment_1000.jpg

Wow thanks for that! theres a lot of good stuff in there.

This explains over 6 chapters how to set up a model in zbrush for 3D printing. Make sure you have a model that your happy with because its not cheap. i got my first zbrush model printed. its kinda nice to look at it and see where i need to improve.

http://www.youtube.com/watch?v=UL2Pnrh8-Ok&feature=channel

thanks alexboyer, your right about everything apart from the fact that that isnt a mask its just the shadow of his head. Thanks for those reference images. Its just that I was assuming that transpose master would just do the trick but the geometry definatly changes your right.

Afterall its just a wrk in prog so changes definatly have to take place after carefull analysis. This was my first time sculpting cloth, and I was using slash2 for the texture. I’ve heard that people use the dam_standard brush for that, Is their any difference?

Thanks for your hints and honest critcs, all has been taken in, I will update as soon as possible.

jack