Bug 135387 - [Mac, iOS] Video upload to texture performance way too slow
Summary: [Mac, iOS] Video upload to texture performance way too slow
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebGL (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Critical
Assignee: Nobody
URL: http://krpano.com/ios/bugs/ios8-webgl...
Keywords:
Depends on:
Blocks:
 
Reported: 2014-07-29 08:12 PDT by Klaus Reinfeld
Modified: 2016-08-04 18:05 PDT (History)
10 users (show)

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Description Klaus Reinfeld 2014-07-29 08:12:51 PDT
On iOS 8 beta 4 and also in the OSX 10.10 Safari the video to texture uploads are way too slow!
An iPad 3 renders only with unusable 2-3 FPS!

The WebGL rendering itself is very fast, 60 FPS on all devices, only the video frame texture uploading is too slow.

Here a simplified test example with a FPS counter:

http://krpano.com/ios/bugs/ios8-webgl-video-performance/
Comment 1 MooLee 2014-08-17 22:34:38 PDT
是的  是在是太慢了
Comment 2 Daniel Rossi 2016-07-25 23:38:10 PDT
I am on IOS9 with Ipad 3. Confirming this is a problem. 

I thought it was something I was doing. The video will play back at full frames but within webgl its a problem. 

This ticket is really old. Any ideas what is going on ?
Comment 3 Daniel Rossi 2016-07-27 07:53:00 PDT
I've added an example which includes the CORS proxy work around and a stats monitor. 

http://dev.electroteque.org/threejs/

It says 5 FPS ! 

I could try and reduce the video size and see if that helps ? 

This animation example from the stats example gives me 14 FPS compared to 60 FPS. 

http://dev.electroteque.org/webgl/examples/basic.html