R190 - jerking on IE, Chrome, Firefox, Opera

Bugs will be moved here once resolved.

Post » Wed Nov 26, 2014 6:52 am

Problem Description
Every moving Sprite, Scrolls etc. are jerking! It is impossible to create projects now because noone want play lagging games!

Attach a Capx
Capx is attached. It have just simple Bullet behaviour without actions! Lags and jerkings are visible by pure eye!

Description of Capx
It have just simple Bullet behaviour without actions! Lags and jerkings are visible by pure eye!

Affected Browsers
  • Chrome: YES
  • FireFox: YES
  • Internet Explorer: YES

Operating System and Service Pack
Win 7 Pro SP1

Construct 2 Version ID
R190
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Post » Wed Nov 26, 2014 8:04 am

HI @Unknow01 - I'd love to know if this is a problem experienced by others before I upgrade to r190.
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Post » Wed Nov 26, 2014 8:14 am

Hello hundredfold,

yes, even others here on forum have same experience (try search key "jerking" / "jerkiness"). BTW you can download .capx file and test it yourself.
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Post » Wed Nov 26, 2014 8:23 am

@Unknown01 - I just downloaded it and it doesn't look particularly smooth in my r184.
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Post » Wed Nov 26, 2014 9:43 am

Telyko wrote:x


I not use Node-Webkit.
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Post » Wed Nov 26, 2014 9:53 am

Oh my bad, I read your post a bit too fast. I'll delete it!
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Post » Wed Nov 26, 2014 10:01 am

Frankly, I'm waiting a bit on r190...but that's because of node-webkit.

I think part of the 'jerkiness' you are seeing is simply due to having a fast moving object without induced blurring. Here's a capx with a speed dependent motion blur effect added (no webGL, just an extra sprite). You can toggle the effect on and off, and adjust the timescale to see it in 'slo-mo'. You might find it useful.

https://www.dropbox.com/s/60iw05zkc9nfh ... .capx?dl=0
Don't lose your work. Backup your game with Dropbox.
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Post » Wed Nov 26, 2014 10:24 am

Hello TiAm,

jerking is well visible while object move but PROBLEM is not in single obejct! Whole project (everything) jerks while it happen. You can try capx and slow down Bullet speed, add other objects etc...
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Post » Wed Nov 26, 2014 12:36 pm

Can't reproduce here, all of IE11, Chrome and Firefox Nightly (latest) are pretty smooth. Firefox is a bit jumpy at the start but "warms up" (presumably the JIT compilation finishes).

Are your graphics drivers up to date? What does Chrome report about hardware acceleration in chrome://gpu?
Scirra Founder
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Post » Wed Nov 26, 2014 1:11 pm

Dear Ashley,
I have older IE, but Chrome, Opera and Firefox is actual. Jerking is visible by pure eye - it happens almost every 5 - 10 seconds. Tested on multiple computers. It is far away from smooth. Because of this I stopped all development. Hope you will reproduce it, if not i can try to record it somehow.

Chrome report about hardware acceleration:
Graphics Feature Status
Canvas: Hardware accelerated
Flash: Hardware accelerated
Flash Stage3D: Hardware accelerated
Flash Stage3D Baseline profile: Hardware accelerated
Compositing: Hardware accelerated
Multiple Raster Threads: Disabled
Rasterization: Software only, hardware acceleration unavailable
Threaded Rasterization: Enabled
Video Decode: Hardware accelerated
Video Encode: Hardware accelerated
WebGL: Hardware accelerated
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