I'm Interested in Virtual Reality [closed] - virtual-reality

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Lately I'm interested in VR and I decided to learn more about it and technologies beyond this.
I also have a background of Mathematic science from my university field.(Applied Math.)
Can anyone suggest me some article or book or anything to learn more?
Free references preferred.
Thank you.

I would suggest you start by actually making things in VR. To read about it and to experience it are completely different things. I personally work with Oculus Rift. It is easy to develop for it because of its integration with various game engines. But as a cheaper option you could get started with Google Cardboard.
If you want to read up about the core technology behind VR, I would suggest start by reading about Computer Graphics. After you have a grip on that you can start to explore other topics for example how tracking works, issues of FOV etc.
For readings about Graphics, I would suggest you have a look at this thread.
https://gamedev.stackexchange.com/questions/12299/what-are-some-good-books-which-detail-the-fundamentals-of-graphics-processing

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Physics Based Multiplayer Game [closed]

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I would like to ask:
If anyone can explain the logic and architecture behind multiplayer physics-based games.
Thank you very much for your time.
During my own research about this topic, I came across these three resources and I would read them (if at all) in the following order. You will see a lot of names dropped which enable you to do further investigation:
Making Fast-Paced Multiplayer Networked Games Is Hard
UE4 networking slides
Method for simulating newtonian interactions over a computer network
In general, you will almost always have to mix several approaches to achieve the best illusion of a multi player world presence.

Has Unity mobile-like multiplayer system? [closed]

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Has unity any tools or services to create a multiplayer like in mobile games, where all online is based on clan system, chat and some stuff like arena or rating?
If has, do you know someone of them (links or guides are optional)?
I read all the documentation and watched some videos connected to the problem, but as I understand it is all about real time multiplayer.
I don't really understand your question. Are you asking if Unity has some tools to create a full multiplayer game experience (matchmaking, voice, chat, etc.)?
Unity's UNet is deprecated and they are developing a new system. Maybe check here:
New Unity system
I would recommend the Photon engine. It basically has everything you need for a multiplayer game and it's free to get started.
Photon engine

Processes of creating a 3D avatar editor for users? [closed]

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I'd like to provide users with the ability to edit the shape, form and properties of their 3D character from templates.
What are the general processes and delineations of responsibility when targeting iOS and using Xcode, Swift, Scene Kit and a 3D modelling application?
I'm no expert in anything 3D related but I believe I can help in this case.
iOS has a 3D engine called SceneKit, you can programmatically create basic 3D objects.
For complex objects you usually create them in an external program such as Cheetah3D and then you can import them and interact with the object in SceneKit.
Some references you may find useful:
https://developer.apple.com/library/ios/documentation/SceneKit/Reference/SceneKit_Framework
http://www.cheetah3d.com/
http://blog.manbolo.com/2014/08/10/import-cheetah3d-model-in-scenekit
http://www.raywenderlich.com/83748/beginning-scene-kit-tutorial
The Ray Wenderlich site has been a great resource for me learning iOS, they have alot of tutorials, video tutorials and even ebooks that you can purchase on a number of topics including game development with iOS and Unity.

Fire Effect opengl iphone [closed]

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Hello any one knows a good tutorial where i can find a pointer to fire/flame effects on the iphone. i know i will have to use opengl but got no clue where to start.
Cheers.
You would probably need a particle engine for this. If you wish to learn to create such effects yourself, it might be tough. You can instead use other frameworks like cocos2d for iPhone. But if you want to do it in pure openGl, search on the lines of 'particle engine / particle generation on iphone' on stackoverflow or even google. You'll get many good pointers. Good Luck.
COCOS2D has a great particle emitter you can use. You can also try Corona for iPhone which is great.
Here's a link to a page that has a particle effect tutorial. This site use to have a fire effect article but the link was removed. This answer use to have the old link.

How to render an interactive globe/earth for the iPhone OpenGL ES? [closed]

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I am looking for an example that renders an interactive earth similar to the one in the Smule products.
Someone just pointed me to this question. I have one!
It's called WhirlyGlobe and it's built specifically for this purpose. Runs on ios, uses a combo of Objective-C and C++ and is very Cocoa Touch friendly. Uses delegates for camera motion, multithreaded, all that good stuff.
Oh, and it's freely available under the Apache2 license.
Details can be found here:
http://mousebird.github.io/WhirlyGlobe/
I can't offer any samples, but Dragon Forged Software sells a prepackaged OpenGL ES Globe for the iPhone. http://dragonforged.com/consult.shtml
A company name Clever Coding offers a opengl implementation of a 3D globe for sale at http://www.clevercoding.com/iPhone3Dglobe.php