[App] Liquid Physics Live Wallpaper

jgittins · Dec 18, 2010

I made a quick port of Grant Kot's liquid simulator java applet and turned it into a live wallpaper.

It uses a ton of cpu so it will probably drain the battery pretty fast but it's fun to play with.

http://grantkot.com/MPM/Liquid.html

zip file contains the eclipse project with all the source code if anyone wants to do something with it

edit: - ignore the apk in this post and download quinbd's version a few posts down, it's much better

worker1 · Dec 19, 2010

It runs slower than my pc; its not fullscreen.

jgittins · Dec 19, 2010

worker1 said:
It runs slower than my pc; its not fullscreen.

Yeah I know. That's as fast as I could get it to run.

SiL3nTKiLL · Dec 19, 2010

pretty sick

ZekeWolf · Dec 19, 2010

Nice! Would be nice if it reacted to phone movement.

Sent from my HTC HD2 using XDA App

jgittins · Dec 19, 2010

ZekeWolf said:
Nice! Would be nice if it reacted to phone movement.

Sent from my HTC HD2 using XDA App

I'm not really going to do anything further with this app so I've attached the source code to the first post if you want to do it

quinbd · Dec 21, 2010

Update

Hey, I took the liberty of adding some features

Updates: 1.0

Fit to screen size
Gravity follows phone
Changed particle color

Update: 1.1

Added options for number of particles and color

Update: 1.2

Added a lot more options
New "Blur" effect
Gravity Sensitivity - (including zero gravity)
Horizontal and vertical gravity inverts - (needed for some phones)
Animation delay setting

Update: 1.3

UI Improvements
FPS Counter
True support for horizontal and vertical screen views
Particle Size Setting (Anything but 0 leads to very poor results)

Update: 1.5

Put on Market for easy updating and sharing
UI / Simulate Tweaks

Features in the works:

Use OpenGL to render
Use native code to calculate the physics
More Fun Stuff

If you have any comments, bugs, or suggestions, please post them here!

*** Download ***
As this app is now on the Android Market, you can either find it by following the link or using the QR code.

http://www.quinndamerell.com/LiquidPhysics/

https://market.android.com/details?id=com.quinndamerell.liquidphysics

All credit goes to the original poster and the creator of the water algorithm!

Enjoy

jgittins · Dec 21, 2010

quinbd said:
Hey, I took the liberty of adding some features

Updates:

Fit to screen size

Gravity follows phone

Changed particle color

Here is the apk for now, I will repost the source later.

All credit goes to the original poster!

Enjoy

Thanks! I like your version better. I wish there was more particles but my phone just isn't fast enough.

/rant/ · Dec 21, 2010

Well, I hate Java and I love C/C++, so I might end up porting this to use JNI. This would probably be one of those areas where using C++ for particle movement could really make a big difference. Thank you.

dan56965 · Dec 22, 2010

Very cool.

I noticed you said it's "as fast as I could get it", but you're using postDelayed with 50ms intervals, which limits the refresh rate to 20Hz.
I changed that to 17ms, and added a simple fps display to test - it seems to max out around 30fps on my phone.

ogdobber · Dec 22, 2010

jgittins said:
I made a quick port of Grant Kot's liquid simulator java applet and turned it into a live wallpaper.

It uses a ton of cpu so it will probably drain the battery pretty fast but it's fun to play with.

http://grantkot.com/MPM/Liquid.html

zip file contains the eclipse project with all the source code if anyone wants to do something with it

quinbd said:
Hey, I took the liberty of adding some features

Updates:

Fit to screen size

Gravity follows phone

Changed particle color

Here is the apk for now, I will repost the source later.

All credit goes to the original poster!

Enjoy

awesome work guys. love both versions

alovell83 · Dec 22, 2010

dan56965 said:
Very cool.

I noticed you said it's "as fast as I could get it", but you're using postDelayed with 50ms intervals, which limits the refresh rate to 20Hz.
I changed that to 17ms, and added a simple fps display to test - it seems to max out around 30fps on my phone.

Is this the original or revised version?

roar109 · Dec 22, 2010

Wow very nice, excelent share your code, i play a little with it,
thanks

jgittins · Dec 22, 2010

dan56965 said:
Very cool.

I noticed you said it's "as fast as I could get it", but you're using postDelayed with 50ms intervals, which limits the refresh rate to 20Hz.
I changed that to 17ms, and added a simple fps display to test - it seems to max out around 30fps on my phone.

Yeah I found 20hz seemed to be the best compromise between animation speed and not using so much cpu time that the phone slows down to a crawl. Different phones might be able to run it faster though.

dicryptor · Dec 22, 2010

Nice app guys. Thanks.

camoway · Dec 22, 2010

May be change partical size? that would be cool. santa wish list?

Luggruff · Dec 22, 2010

+1 Supscription!

I really want this as a daily-use-wallpaper! :drool:

EDIT: Is there a way to make it more blurry, so it looks like the thumbnail here: http://www.xda-developers.com/android/mesmerize-your-friends-with-liquid-physics-lwp-for-android/ and not like this http://www.xda-developers.com/wp-content/uploads/2010/12/Liquid-Physics.png ???

dan56965 · Dec 22, 2010

alovell83 said:
Is this the original or revised version?

Yeah, it is.

gattaca714 · Dec 22, 2010

Awesome...thanks.

0utkast · Dec 22, 2010

Good work, thank you

[App] Liquid Physics Live Wallpaper

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