Amazing technology that allows 3D modeling and retouching just by tracing objects in the photo

When asked as 3D modeling, beginners seem to have tremendous time to master, they tend to receive a high degree of difficulty. However, state-of-the-art technology related to CG held in Hong Kong gathersSIGGRAPH Asia 2013A surprising technology that allows modeling by simply tracing an object on a photograph with a mouse and can be transformed as it is3-SweepWas introduced.

Ariel Shamir's Homepage
http://www.faculty.idc.ac.il/arik/site/3Sweep.asp

3-Sweep: Extracting Editable Objects from a Single Photo, SIGGRAPH ASIA 2013 - YouTube


3 - Sweep is very simple, first trace the two sides of the bottom of the object with the mouse.


Similarly tracing to the top of the object ... ...


Modeling is completed.


Modeling can also be performed by tracing objects including curves.


After modeling is completed, move the object on the picture.


Circular objects can be modeled in the same way as before.




Also trace the mouth part with a special shaped object like a bottle with a mouse ......


Just move it toward the bottom of the bottle and it is ok.



Modeling complicated shapes like faucets for parts as well. First we start with the handle.


Then the part of the fuselage.


Finally we model faucets from the wall.


After modeling, try rotating the object. First of all, decide the rotating axis ......


Rotating the part of the handle changed to a cross-shaped handle.


Select the entire faucet ......


When you turn it, a new faucet appears.


Modeling by tracing a huge telescope with a mouse.


Determine the axis to rotate and change the angle of the telescope.


Retract the lens part ......


I made it thin.


It transforms the body part etc and finally completes the small telescope.


Candlesticks having the same shape at the tip are modeling and copying the top one.


If you drag as it is to fit another thing, it will automatically resize and model it.


Copy the part of the handle of the S shape as well ......


Drag to the right.


Model it to the perfect size by rotating it.


Rotate the modeled candlestick to increase the part to place the candle.


The final shape is like this.


Next modeling street lights.


Copy the part of the light and proliferate.


It is also possible to copy the entire streetlight and place it in various places in the image.


We also model the candlesticks with plenty of patterns one by one.


Detach the modeled part from the foundation.


Looking at the patterns in various directions ......


A completely different candlestick is completed.


Even if a single image contains multiple objects, you can model them one by one.


Modeling the candlestick in front, vases and objects in the back in order.


I moved three objects to different places.


This is a building called a needle of Cleopatra in Paris. Modeling only the base part ... ...


Reduce and paste it to another image part.



As it is, as it is different only the color of the foundation, copy and adjust the color from the upper part.



When I magnified it, the pattern carved on the surface of the base modeled out from another photo was also reproduced.


It is a 3-Sweep that can be used simply and looks perfect, but there seems to be some failure. For example, the bottom of toothpaste is not flat and can not be modeled.



Also, if the surroundings of the object are unclear and blurred, 3-Sweep does not seem to recognize the shape.


Despite the above disadvantages, 3-Sweep has become an epoch-making technology that enables modeling by just tracing objects using a mouse, and furthermore, a technology that can retouch freely with this feeling on the picture There is nothing ever. In the comments received on YouTube, comments that hope to be adopted for image editing software etc. are posted in the near future, and further development will make it possible to model organic matter such as humans and plants.