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Jan 22, 2016

By Chris Car

Chris from IdeaSpaceVR has built an interactive 360-degree photosphere viewer. Space bar toggles a menu system, and a gaze-based cursor selects photos.

Recently I installed the Cardboard Camera app on my phone. It is a 360-degree photosphere VR app for Google Cardboard including a nice menu in VR which allows one to easily select photos from a list. The photosphere is showing photos with a so-called equirectangular projection (did not hear about that term before, as I am not a photo nerd ;-) ).

Since I knew that A-Frame had been released I thought of implementing this app in A-Frame, as I thought it might be quite easy to do, AND I would learn coding in A-Frame.

After a few hours of playing around I realised that

(a) yes it is easy to implement a photosphere BUT (b) implementing a decent VR menu could not be done by just using A-Frame tags.

Which lead me to implement my first component for A-Frame. As it turned out, I needed actually two components:

The first component handles the VR photo menu (showing the menu, hiding the menu, position it in space). This component acts as a container for the photo thumbnails. You can check out the source code here . I have to admit that I was not able to write the code for positioning the menu in space. So I turned to Stack Overflow which helped me out on that one (again).

The second component is associated to each photo thumbnail within the menu container. I handles the selection of the photo via the mouse click event. I disabled the fuse cursors which would normally emit this click event. After many tests I decided that I did not like the fuse cursor for selecting photos. I guess people nowadays either have a Cardboard 2.0 (which supports a button) or an Oculus Rift and a mouse and keyboard. Additionally, I decided to only show the cursor when the menu is visible.

The main index.html file is straightforward. It contains the code for the photo thumbnail menu animation, the sky tag, the camera, the cursor, and their settings. Here’s the nike air max 790 kabc

Anyway, this is a very first version of the 360-photosphere viewer, but I am quite pleased with it.

All photos are licensed under Creative Commons 2.0 Generic Attribution .

Flickr is a good source of equirectangular photos , or you can create your own by using Android Camera app (using the photosphere option).

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Symmetry in photography creates a powerful visual impact which is bothappealing and intriguing. In this tutorial, you’ll discoverusefultechniques for creatingsymmetrical compositions such ashow to look for symmetry while you’re out shooting and how to compose your shotsfor maximum impact. You’ll also be introduced to some iPhone apps for creating symmetrical photos in situations where you can’t find any natural symmetry in the scene.

The dictionarydefinition of symmetry is “The quality of something that has two sides, or halves, that are the same or very close in size, shape and position.”

Note that we are not exclusively talking about mirror images. So an image with a road or path down the middle with similar objects on either side constitutes a symmetrical image.

When I look for symmetrical images, I keep an eye out for lines, or objects that create lines . Then, I look for either a vertical line of symmetry or a horizontal line of symmetry.

As you’re probably aware, we’re hardwired to find symmetry attractive. The most obvious example is that we tend to find people with symmetrical faces to be more attractive than those with asymmetrical faces.

Symmetry provides our brains, which are always looking for structure and patterns in the world, with a sense of harmony. Symmetry is also aesthetically pleasing because of the balance it provides in an image.

Let’s now take a look at how to create stunningsymmetrical compositions with your iPhone.

In order to create a symmetrical image, you must ensureyour camera’s sensor is parallel to your subject. What that means is that if you were to holdyour iPhone rightup to the subject, it would lay flat against it.

Any sort of tilt will result in lines that are slightly off, which can drive our brains crazy!

This type of shot can be tricky because you haveto be completely centered, with youriPhone parallel to the wall in front of you. Any slight deviation, and the hallway would bethrown off center.

If you shoot from too low down with your iPhone tilted up, or too high up with your iPhone title down, you would end up with lines that converge slightly towards the top or bottom of the image which wouldn’t look so good.


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Performance versus compliance/conformance audits

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A key difference between compliance/conformance audits and audits designed to promote improvement is the collection of audit evidence related to organization performance versus evidence to verify conformance or compliance to a standard or procedure. An organization may conform to its procedures for taking orders, but if every order is subsequently changed two or three times, management may have cause for concern and want to rectify the inefficiency.

Follow-up audit

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