Vish Gollakota - CG Generalist

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Nov 01, 2019
3D Printing ?

Now the I finally had some spare income, I decided to purchase a 3d Printer! I purchased the Photon S on amazon during a promotion Amazon was having and I can only saw WOW. I love the fine quality of detail this printer can produce. While it can get a bit smelly at times, this printer has the ability to keep very fine details of a model, provided they have the proper supports built in. In thew coming weeks, I hope to have a new post added that showed the process that shows what I had to go through to attain the model below.

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Nov 20, 2018
Finished Sculpt Version 1

This is the finished sculpt that was imported into Houdini to be used in my thesis, before adding my procedural rock texturing 

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Nov 05, 2018
Zbrush Zbrush Zbrush

Now that I had the head mesh it was time to sculpt.. this is the raw mesh data the was imported into Z brush

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Oct 30, 2018
PhotoScan

My girlfriend Jenna volunteered ...(volentold) to be my test subject for this attempt.

I took 4 sets of photos for this try

1 under her chin

1 angled upward from her chin 

1 directly at her face

1 above looking down

In photo-scan these were the settings I used

I am in no means an expert but these setting seems to work fine for me and did not take days to compute

Align Photos

Accuracy [High], Key

Point Limit [90,000], Tie point limit[0]

Build Dense Cloud

Quality [Ultra High],

Depth filtering [Aggressive]

Built Mesh

Surface type

[Arbitrary 3d], 

Source Data[Dense Cloud], 

Face Count[High]

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Oct 20, 2018
Build the Rig

With 100 Percent Honesty, this blog is being written about a year after I have created the 3D scan, I'll try my best to remember everything as it was and some of this is gonna be copied and pasted from my MFA thesis paper. :)

I did several different experiments to see what would be the best result for scanning a head. At first I bough a computer screen Lazy Susan and had the subject stand on it. I added a green screen behind them and rotated the subject 10 degrees for each photo, taking photos at various heights. Then keyed out the green screen and used that key as a mask, to be imported as a separate file into PhotoScan.

While this works......it takes a while to edit the photos. So instead I decided to build a rig that took up the entirely of my living room to rotate around my subject removing the need for a green screen.

Going to youtube I viewed a few tutorials as to how to create a 360 camera rig. 

Just about everything you would need can be found at home depot or Loews, besides the wheels that I needed to order on amazon

But for around $60 Dollars

1 round piece of wood

4 angled wood

4 wood blocks

wheels X 8

PBC piping 

Valcro for the tripod if you would like

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Vishnu Gollakota - Art Director and Visual ï»¿Effects Artist

Made with Pixpa
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