3d models from displacement map

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An experiment with the extracted depth map from a lens blur picture taken with a nexus.. more info here – http://ift.tt/1nxvbyW


My dog Rumi

    on Sketchfab

An old sword hanging on a wall..


    on Sketchfab

A pile of concrete blocks


    on Sketchfab

 My dog Mulan


    Mulan 3d
    on Sketchfab


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So The Nexus Captures Depth Maps Now

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So a few days back after my phone got all its updates.. i discovered the “Blur” mode in the camera. This mode basically creates faux depth of field.. or soft focus. I happily started using it without actually realizing what it has been doing all this time.

My brain melted when i realised that something that used to take advanced 3d software like 3dsMax and Blender minutes.. even hours to render (few years back anyway) .. google’s camera app does it in seconds.

First a brief introduction to Depth Maps or as me and most of the 3d modelling community refers to as Z-depth maps

In 3D computer graphics a depth map is an image or image channel that contains information relating to the distance of the surfaces of scene objects from a viewpoint. The term is related to and may be analogous to depth bufferZ-bufferZ-buffering and Z-depth. 

The “Z” in these latter terms relates to a convention that the central axis of view of a camera is in the direction of the camera’s Z axis, and not to the absolute Z axis of a scene. – wikipedia

here are some examples of Z depth maps i rendered for different projects



and heres a detailed video of how to use them to add depth to an image

Now back to the Nexus’ camera app.. in blur mode you Frame your photo, move the camera (phone) in an upward tilt or motion, and the software captures depth information.. 

The depth information is stored in the original still itself.. meaning that blur effects can be applied and altered in post-processing.. at any time!

So heres a pic of my dog Rumi(scroll down for my other dog Mulan).. and below it the original sharp image and the depth map


Using a clever website called Depthy( http://ift.tt/1rgp4gX  by Rafal Lindemann) that can run on your phone, you can load up your nexus blur images and it lets you see the depth map.. edit it.. re-apply it.. and then it also lets you convert the image into a parallax photo.. which can be saved as a gif or video.. like so

for a detailed tutorial on how to use depthy, visit this page 

here are the basics:
1) Use the nexus camera to take a picture in Blur mode
(if you don’t have it, get the camera app here http://ift.tt/1hM3UYc )

2) Go to depthy.stamina.pl on your phone(chrome works.. other modern browsers will too) and upload your image .. once uploaded it lets you touch and drag to see the range of parallax available

3) Use the tools to make adjustments
4) Under the share option, theres actually a few other features like ..
exporting a stereoscopic 3d image(red and blue glasses required)

as well as animated gifs, video etc.. Download whichever you like.. various file sizes will be provided.

5) additionally if you like you can go to the “Image Properties” tab and download the extracted depth map.. coz.. well its pretty interesting looking.
here are some other gifs i created today..


enjoy! 

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Nexus 5 first Impressions

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Got my Nexus 5  yesterday.. I got the 32gb black one.
Here are my first impressions.
I won’t go into all the features.. since there are plenty of better reviews out there. this is just about my experience upgrading from a Moto Defy+ .. a fairly underpowered phone from todays standards.
The first thing i did was explore all the customizability available in the stock launcher.. 
and then promptly installed Go Launcher Ex. Not that i didnt like the stock launcher.. its lovely, compared to all the OEM launchers i have put up with in the past.. But I have been using Go Launcher, Apex and others on my old tablet.. so was pretty spoilt with all the customisability(grid count, etc.) and skins. I’m also pretty used to GoLocker’s skinnable lockscreens.. so that had to be added as well.
so here are my screens now.
The wallpaper is a painting by Daniel Danger 

 the lock screen is using Dark Grunge.. get it here

I couldnt figure out how to add a “screen rotation” toggle to this..

so i quickly installed Power Toggle, get it in the play store.. just search for “toggle”.. and you’ll find a bunch of apps.. pick whatever suits you.
Alright so here are some games i tried out..
Haven’t seen the movie yet, but love the trailer and exo suits.. 
So was happy to try the game.
That video is the first thing I posted to YouTube from the phone.. Infact it was captured in the game using its own capturing feature! Had heard that video capture was a new feature in android.. Hadn’t realized that people had already started adding it to apps.. Anyway it was fun. The gameplay becomes monotonous.. Reminded me of the time warping mechanism in the PC game Time shift.
The next game I tried was Modern Combat 4.. Needless to say it’s stunning on the nexus. Here are some screenshots(in full HD)

 The gameplay is intriguing.. for a Gameloft production.. You get to play as a baddy.. Something I haven’t seen on mobile before. The flipside is that it uses up a lot of power.. since the Nexus has a 2.3 GHz  and an Adreno 330 graphical chip .. the power consumption goes through the roof during games.

Apart from that power issue, i don’t seem to have anything else to complain about yet..
So far am pretty happy with my investment. The voice features of Google Now are brilliant.. I know it’s old news.. Am just glad I finally have a device that has it. 
This upgrade was a long time coming.

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Classic Menu in UBUNTU 14.04LTS

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The classic menu indicator provides a classic, GNOME 2-style menu on your panel in Unity.

Install it with the following commands:

sudo apt-add-repository ppa:diesch/testing
sudo apt-get update
sudo apt-get install classicmenu-indicator

Launch ClassicMenu Indicator from the Dash after installing it. The last menu “ClassicMenu Indicator” lets you customise it a bit

for more great unity applets visit http://ift.tt/Nl72eg

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Sketchfab hoody

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Just got my prize from one of the #Sketchfasts

Read the interview – http://ift.tt/1pQg0Eo

Check out the other winners – http://ift.tt/1lec8WI

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