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L'Ancien Regime

_brx releases 80 high quality 8k scans of food

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http://www.cgsociety.org/news/article/2815/why-food-

Why Food?

 

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In January 2016, _blankRepository launched a 40+ raw scan catalog. Now, they will release an 80+ paid catalog of processed 3D scans, featuring reduced topology and 8K normal and displacement maps with _brx.
 

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The Process


At _blankRepository, we create 3D scans through photogrammetry. This means that every single object on the catalog has to be photographed between 120 and 350 times in order to capture every angle and every detail, we need to build a quality 360 degrees model. The process is long and complicated, but we believe this is the best way to achieve high quality.

Agisoft Photoscan is the backbone of our process. We use it to align the photos, build a 3D cloud and then execute the raw 3D scan. It also generates a texture map, which is probably as valuable as the model itself, that is perfectly align to every dent, bump or wrinkle in the model.

A raw 3D scan has between one and seven million polygons, so we use ZBrush to handle those millions of polygons. We also use other powerful features of ZBrush, like Dynamesh or UV master, to create the final version of our models.

 

https://brxtended.com/

https://brxtended.com/collections/all

 

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Why Food?


I saw the potential of photogrammetry when I was working as an artist and producer of a fully 3D animated short film, called Isolated, which required us to scan the faces of two actors.

Once we found this technology, we decide we needed to do something with it. After giving it a lot of thoughts, we decided food was going to be our focus.

Why? Mainly because organic things are particularly difficult to get right in CGI, and the ability to create a digital double of pretty much any food is invaluable to me.

It makes things so much easier in the lighting and rendering process when you have access to the most accurate model and texture map to give life to scenes.

Plus, with our initial budget, the smaller the better; smaller means less cameras, less lights, but a lot of extra work. Working with food in production is usually very challenging.

Vegetables and fruits have decomposition states, which means you can only shoot a perfectly yellow and green banana a few times before it starts to change to a spotty one (which we also want to scan, because is as useful as the other one).

Cookies, brownies, muffins and stuff like that, need a little patience. You can´t scan a brownie or muffin fresh out of the oven. You have to let it sit to let it harden and reach a manageable state. You also can't wait for too long because it will look aged and dry. You have to get it in that sweet spot.

It’s important to work at the right temperature, so things like chocolate and frosting don’t melt. The lighting has to be just right, without any shadow information and as little specular as possible.

All food has features like subsurface scattering or specular and reflections. We have to diminish those features as much as possible so that the artist can put those attributes back when creating the shader, in order to achieve a photorealistic result.

 

_brx/brxtended.com


When we launched blankrepository.com, we couldn't deliver processed scans with working uvs, new topology, or normal and displacement maps as we initially wanted.

We were, and still are, basically a two person team, so it was much more important for us to release 40 free raw scans and see if they were as useful and needed as we thought.

A couple of months later, our thoughts were confirmed, and we began creating brxtended.com, which is a continuously-growing paid catalog of over 80 3D scans with reduced topology, 8K color, and normal and displacement maps.

Most of the 3D models are sold individually, and a few come in pairs, like two parts of an avocado, or quartets, like four onion rings. The prices range from $10 to $35 for a high-quality 3D scan.

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On 10.11.2016 at 2:34 PM, L'Ancien Regime said:

Vegetables and fruits have decomposition states, which means you can only shoot a perfectly yellow and green banana a few times before it starts to change to a spotty one (which we also want to scan, because is as useful as the other one).

That's why i use handheld 3d scanner to get 3d model for my own purposes. Faster. No banana will have time to turn dark.

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