Keep up-to-date with Free tutorials!!

 

Sign up to our twice-monthly newsletter today for the latest tutorials, interviews and product information.

Sign me up to receive third-party emails from 3dtotal's partners, too!

- Latest news
- Exclusive Shop Offers
- Preview early content
- Plus much more

 

Not Ready to take that step? OK, Why not just Subscribe to the RSS Feed

 
submit tutorial
1 | 2
Making of 'Sea Turtle'

By Katrin Schmid
| Your Rating:
rating star fullrating star fullrating star fullrating star fullrating star full
(1 Votes)
| 30337 Views
| 0 Comments
| Comments 0
Date Added: 9th December 2009
Software used:
Maya, ZBrush
In the end, I think the advantage of the deformation map approach when compared to free-hand sculpting gives very accurate control of the placement of details, especially when layering several deformation maps. The details fit the colour texture nicely. The downsides are the need to paint many deformation maps (about ten for the body alone), and having to switch back and forth between ZBrush and the paint program for every change in deformation. Worst of all, there was visible UV-stretching when deformations became too large.

Light Setup

After detailing, I went back into Maya and set up an underwater photograph back-plate, and matched the lighting to it. The back-plate can be seen in Fig.15.

345_tid_fig15.jpg
Fig. 15

The Volume light setup used Mental Ray physical light and the Mental Ray participating Volume shader, applied to a cube. The spheres in front of the Volume light were partially transparent, because of the visible streaks in the light cone. There was also a Fill light from below, and an IBL-gradient in the scene. The white sphere next to the head was not renderable and was used for the eye reflection only. The Volume light setup in Maya view port can be seen in Fig.16, and the rendering result in Fig.17.

345_tid_fig16.jpg
Fig. 16

345_tid_fig17.jpg
Fig. 17

Rendering

I re-imported the "cage object" models from ZBrush and smoothed them in Maya, by one level. I used the Mental Ray architectural material for all shaders, as non-Mental Ray shaders are known to not work well with the physical light. I applied the painted colour texture and the normal map. The cavity maps went into the extra colour as a multiplier. The re-imported and smoothed 1 or 2 level cage objects can be seen in Fig.18.

345_tid_fig18.jpg
Fig. 18


Compositing

I rendered everything in Mental Ray in 2K resolution and 16-bit colour depth. Because it's a still image, there were several passes for the lighting. I then put them all together in Photoshop. Some render passes: projected caustics and self shadow passes can be seen in Fig.19 - 20; Volume light and Ambient Occlusion passes in Fig.21 - 22; and Specular and Reflection passes in Fig.23 - 24.

345_tid_fig19.jpg
Fig. 19
345_tid_fig20.jpg
Fig. 20

345_tid_fig21.jpg
Fig. 21
345_tid_fig22.jpg
Fig. 22

345_tid_fig23.jpg
Fig. 23

345_tid_fig24.jpg
Fig. 24

I had to do some painting for the generated normal maps and on UV seams in the finished image, where I had not ideally placed the position of the camera. I finally applied depth of field using a Z-map, and used a Photoshop lens blur. The result can be seen in Fig.25.

345_tid_fig25.jpg
Fig. 25
 



< previous page

 
1 | 2
Related Tutorials

Tutorial

Gallery Image.



Keywords: lighting, baking, maya, turtle,

Go to tutorial
rating star nonerating star nonerating star nonerating star nonerating star none (0)
Comments 0 Views 61654

Tutorial

Gallery Image.



Keywords: sea, creature, fantasy, city, turtle,

Go to galleries 1
rating star nonerating star nonerating star nonerating star nonerating star none
Comments 0 Views 48810

Tutorial

Gallery Image.



Keywords: turtle, sky, clouds,

Go to galleries 1
rating star fullrating star fullrating star fullrating star fullrating star full
Comments 5 Views 12847

Tutorial

Gallery Image.



Keywords: transpose, master, poseable, symmetry, zbrush,

Go to galleries 1
rating star nonerating star nonerating star nonerating star nonerating star none
Comments 0 Views 8945
Readers Comments (Newest on Top)
no comments!
No comments yet. Be the first to comment!
Add Your Comment