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Tyrannosaurus rex 3D life reconstruction by Sketchy-raptor Tyrannosaurus rex 3D life reconstruction by Sketchy-raptor
A look at my finalised 3D Tyrannosaurus rex life reconstruction. Check out the ArtStation link for more images: www.artstation.com/artwork/NWl… 

Modelling a certain famous ceratopsid is next on my agenda. Stay tuned.

From ArtStation:

"The finalised iteration of my Tyrannosaurus rex for now. Fully textured, rigged and ready to animate. This has been a rewarding project. Throughout the design, sculpting and painting process, I've refined both my software technique and my knowledge of dinosaur anatomy. I'm particularly proud of the tangible feel to the skin compared to some of my previous models - custom subsurface scattering shaders go a long way. I'm also pleased with glossiness of the rostral scales and the coarse appearance of the cornified and armoured skin.

I'd like to do a detailed breakdown of the making of this dinosaur focusing on the underlying rigorous science and anatomy. Stay tuned if this would interest you."

All feedback is appreciated.

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Base sculpt created in Sculptris
Detailed sculpting, retopology and normal baking carried out in Blender
Feathering, rigging and rendering carried out in Carrara
Add a Comment:
 
:iconraviik:
Raviik Featured By Owner Jul 29, 2018
I love any thing that involves dinos 
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:iconraptorwings:
RaptorWings Featured By Owner May 10, 2018  Student General Artist
This is an extremely amazing reconstruction of Tyrannosaurus!  I love the feather placement and pattern.  The skin folds are really nice! 
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:iconjpguchiha:
JPGuchiha Featured By Owner May 4, 2018  Hobbyist Traditional Artist
Why dose it have feathers?
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:iconsketchy-raptor:
Sketchy-raptor Featured By Owner May 5, 2018  Student General Artist
Very minimal speculation well within the realm of plausibility, plus personal aesthetic choice. 
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:iconjpguchiha:
JPGuchiha Featured By Owner May 5, 2018  Hobbyist Traditional Artist
Fair enough.
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:iconreferencials:
Referencials Featured By Owner May 4, 2018  Hobbyist Digital Artist
This is wild.
Reply
:iconarya9118:
Arya9118 Featured By Owner Apr 29, 2018  Hobbyist Traditional Artist
His arms are so tiny 😀
Reply
:icontaliesaurus:
Taliesaurus Featured By Owner May 3, 2018  Hobbyist Digital Artist
not as tiny as carnotaurus
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:iconarya9118:
Arya9118 Featured By Owner May 3, 2018  Hobbyist Traditional Artist
I konw 😁
Reply
:icontaliesaurus:
Taliesaurus Featured By Owner May 3, 2018  Hobbyist Digital Artist
ok
Reply
:iconportentosaman:
PortentosaMan Featured By Owner Apr 29, 2018  Student Traditional Artist
This is awesome :)
Reply
:icongdpr-14917625:
gdpr-14917625 Featured By Owner Apr 28, 2018  Professional Digital Artist
I've been looking a bit closer but it seems out of balance. His hind legs are bent forwards in a way that should put more pressure on his feet and especially the claws of those feet. The femur seems to be almost vertical making the knee joint at a very wide angle. It can still lean this much forwards but the knee needs to have a sharper angle. That has to do with how energy is going through the sinews of his legs. Too straight and he would have to spend more energy on walking. If the knees are more bent then the sinews will store more kinetic energy, which makes walking more efficient.
As for the forelimbs... They look a bit weak. The current theory is that the T-Rex did use them to grab it's prey. They weren't vestigial but more grappling hooks so he could hold on to his prey and push it down while his jaws did most of the work.
As for the tail, the T-Rex would have massive air pockets in it's upper torso and skull so it wouldn't have to be very thick, but it looks a bit too thin overall. At the base, it should be okay. But it tapers to a thin tail which would make it too light to compensate for the torso and head. Also, a tail that thin could be bitten into by another T-Rex and thus it would loose part of it's tail and loose balance. If it's more thick, it could survive a fierce bire.
But the main problem is that so many artists have already made T-Rex models based on what they believe it should look like while from a scientific viewpoint we don't even have a complete skeleton and thus can't tell exactly.So don't let these comments discourage you, as you could still be right. ;)
Reply
:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Edited Apr 28, 2018  Student General Artist
I appreciate the critique, but I can assure you - the skeletal/muscular proportions and posture of this model are accurate based on the known material referred to Tyrannosaurus rex

Primarily, this model is based on specimen BHI 3033 "Stan", which has an almost complete axial skeleton (i.e. skull, neck, torso, sacrum, tail). 

The relative sizes of the forelimb elements in this reconstruction are accurate to other relatively complete T. rex specimens. They are not undersized, nor are they undermuscled. 

As for the posture - the sinistral femur is actually rotated ~20 degrees forward of the vertical axis, and the dextral femur slightly further. The tibia/fibula and feet are bent more or less into the neutral articulated position. Overall, the hindlimb posture is accurate based on the known limits of T. rex skeletal articulation.

The posture depicted here would not be unbalanced - to reiterate from a previous comment, in this image the animal is actually slightly leaning backwards from the usual, near-horizontal habitual position. The apparent front-heavy appearance is deceptive - do not underestimate just how voluminous the zero-density air spaces in the torso and skull actually are. 
Reply
:iconstarwars9:
starwars9 Featured By Owner Apr 28, 2018
Very nice. The tail looks a little thin. Wouldn't it be thicker and longer to help balance T-rex while running?
Reply
:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Apr 28, 2018  Student General Artist
The muscular and skeletal proportions in this model are accurate.

As mentioned in an another comment - Tyrannosaurus may appear front-heavy for a biped, but you may be surprised by just how voluminous the weight-reducing zero-density air spaces within the torso and skull actually are (see Hutchinson et al. 2011).

Perhaps this is also a matter of perspective - if you observe the orthographic image of the same model in the ArtStation upload, you'll see that the tail is extremely thick and muscular at the base. 
Reply
:iconinsanenicky:
InsaneNicky Featured By Owner Apr 28, 2018  Hobbyist Digital Artist
That's a big chicken
Reply
:iconrudolph5000:
Rudolph5000 Featured By Owner Apr 28, 2018
It packs one hell of a peck. Rudolph the Red Nosed Reindeer 
Reply
:iconphotoedfade:
photoedfade Featured By Owner Apr 28, 2018  Hobbyist Digital Artist
the arms look a little funky, and the body looks a little too horizontal, and big, but otherwise it looks pretty neat!
Reply
:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Apr 28, 2018  Student General Artist
As mentioned in another comment -

The skeletal and muscular proportions here are accurate, as is the posture. If anything, in this image the animal is actually slightly leaning backwards from the usual habitual position. 

Tyrannosaurus may appear front-heavy for a biped, but you may be surprised by just how voluminous the weight-reducing zero-density air spaces within the torso and skull actually are (see Hutchinson et al. 2011).
Reply
:iconphotoedfade:
photoedfade Featured By Owner Apr 28, 2018  Hobbyist Digital Artist
ooh neat! sorry about that! i see, (from looking through the comments) a lot of people are commenting on that. must be annoying
Reply
:iconinvader-naj:
Invader-Naj Featured By Owner Apr 28, 2018
i know that a trex has short arms but are they realy that short?
Reply
:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Apr 28, 2018  Student General Artist
Yup.
Reply
:iconguardian-of-azarath:
Guardian-of-Azarath Featured By Owner Apr 28, 2018
This is very nice.

Wish I was this good with sculpting, really struggling with Zbrush.
Reply
:iconlvcalidianus:
LVCalidianus Featured By Owner Apr 28, 2018
DINOSAURS, FUCK YEAH!
Reply
:iconsprinqroll:
Sprinqroll Featured By Owner Apr 28, 2018  Hobbyist General Artist
This is awesome!!!
Reply
:icontranspaleoartist:
transpaleoartist Featured By Owner Apr 28, 2018  Hobbyist General Artist
Absolutely WONDERFUL! The most fantastic Tyrannosaurus restoration I've seen
Reply
:iconposes17:
Poses17 Featured By Owner Apr 28, 2018  Hobbyist Digital Artist
Fantastic, masterful work. Looking at your Art Station project pages was really rewarding.
Reply
:iconmrmattycue:
MrMattyCue Featured By Owner Apr 28, 2018  Hobbyist Traditional Artist
I love it!
Reply
:iconquill-stroke:
Quill-Stroke Featured By Owner Apr 28, 2018  Hobbyist General Artist
It doesn't seem to have many feathers on it. I see the tufts on the top, but that it. ^^;
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:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Edited Apr 28, 2018  Student General Artist
Based on the current evidence, minimal (or at least very restricted) feathering in adult tyrannosaurids is more reasonable than an extensive covering. Derived tyrannosaurids would have been dominantly scaly, at least in their adult form (see Bell et al. 2017). 
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:iconquill-stroke:
Quill-Stroke Featured By Owner Apr 28, 2018  Hobbyist General Artist
Ah okay, yeah I have to read up more. It's been a while since I've read up on any articles.
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:iconstrick67:
Strick67 Featured By Owner Apr 28, 2018
Looking great!
Reply
:iconferdinandrosenthal:
FerdinandRosenthal Featured By Owner Apr 28, 2018  Hobbyist General Artist
What a jolly fellow. A smile to die for.
Reply
:iconyikyik:
YikYik Featured By Owner Apr 28, 2018  Hobbyist Traditional Artist
It looks really beautiful and well made, the only thing that feels a bit off for me is that it looks too fron heavy. Like, maybe the head torso is a bit big or the tail too thin. But the skin and textures and the general look of it is great! :D 
Reply
:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Apr 28, 2018  Student General Artist
Believe it or not, the skeletal and muscular proportions here are accurate. Admittedly, Tyrannosaurus does look bizarrely front-heavy for a bipedal animal, but you may be surprised by the sheer volume of the weight-reducing zero-density air spaces within the torso and skull (See Hutchinson et al. 2011: journals.plos.org/plosone/arti…).
Reply
:iconyikyik:
YikYik Featured By Owner Apr 29, 2018  Hobbyist Traditional Artist
Awesome. :D Still bothers me a bit. Realistic or not. :XD: My brain keeps telling me it should topple. :D But awesome job! :) 
Reply
:iconsolariana:
Solariana Featured By Owner Apr 28, 2018  Professional Digital Artist
Damn!!! This is amazing Heart 
Reply
:iconsunderhart:
sunderhart Featured By Owner Apr 28, 2018
very nice.
Reply
:iconshockalocker:
shockaLocKer Featured By Owner Edited Apr 28, 2018  Hobbyist General Artist
Are the pores located on its backbone Trichomonas gallinae?
Reply
:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Apr 28, 2018  Student General Artist
If you're referring to the row of darker spots running along the dorsum, then no. That's just a row of larger scales with darker pigmentation. Reasonable speculation for the sake of more heterogeneity in the design, nothing more. 
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:iconshockalocker:
shockaLocKer Featured By Owner Edited Apr 28, 2018  Hobbyist General Artist
I personally believe the black color is visually misleading because it resembles opened holes. You may need to change the color if you intend them to be small, protruding scales, preferably very white color or grey. It's not very aesthetically pleasing to amalgamate sharply varying color pallets together, but I can perfectly see why you would desire speculative heterogeneity, and I complement you for being imaginative with the paleobiology of the dorsum scales.

Edit: I did indeed quickly research into the "Stan": BHI 3033 fossil specimen and, humorously coincidentally to my initial question, Stan did suffer from Trichomonas throughout the bottom jaw and snout.

Edit Edit: I'm intrigued by your works of paleobiology so you just got yourself a new watcher
Reply
:icon8loulou8:
8LouLou8 Featured By Owner Apr 28, 2018   Digital Artist
Awesome!! 
Reply
:icontheturretboy:
TheTurretBoy Featured By Owner Edited Apr 28, 2018
oh my god the arms, it's so cute!!!
Reply
:icontigerlegend1046:
TigerLegend1046 Featured By Owner Apr 28, 2018  Hobbyist Traditional Artist
Whenever I get depressed I just imagine a T-rex trying to pick up a basketball :D Thylacine Pawprint Bullet 
Reply
:icondharkness20:
Dharkness20 Featured By Owner Apr 27, 2018
That's a pretty nice looking T-Rex! Always did love the Tyrannosaurus.
Reply
:iconsaltyus:
Saltyus Featured By Owner Edited Apr 27, 2018  Hobbyist Digital Artist
MASSIVE respect to you! I love learning the Blender program but it takes time. Have you tried Blender for sculpting before?
Reply
:iconsketchy-raptor:
Sketchy-raptor Featured By Owner Apr 28, 2018  Student General Artist
I've been using Blender for for just under a year now. The sculpting function is great for detailed surface texture on a budget, but I find it unintuitive for sculpting larger body forms and anatomy. I use Sculptris for those instead. 
Reply
:iconantonellisofbbender:
AntonellisofbBender Featured By Owner Apr 27, 2018  Student Filmographer
WOW i love this
Reply
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