notes taken onsite

[jeromeetienne]

monitoring

• download size
  • model
  • texture
• ram server
  • node + php
• ram client
  • window.performance.memory
• fps for the 3d

  steps

• first measure the metrics
• then what ? archive them ? like auto email ? not sure

[jeromeetienne]

• time to load the game on fresh box
• support for high latency
  • simulation lag
• atlas texture png, to jpg + binary mask

[jeromeetienne]

• bug tracker
  • mantis, wirks, github
• code review
• plan stuff

[jeromeetienne]

duplicate code

• ask around to avoid it

[jeromeetienne]

meeting ?

• reduce it to the minimum

specific due to remote

• need to organize it as i will be remote.
• how do i communicate with the tech team
• how do i keep tom updated
• how do i communicate with graphic team

[jeromeetienne]

• backup

[jeromeetienne]

• oak3d license ?
  • http://wiki.oak3d.com/index.php?title=License
• read it and see what the license demands

alternatives

• ask for a license
• recode it ourself
• dont do anything if the license is ok

[jeromeetienne]

documentation jsdoc

[jeromeetienne]

google closure for optimizing code

• provide sanity check
• speed improvement
• minify code
• https://developers.google.com/closure/compiler/

[jeromeetienne]

image cleaning.

• aka stripping png from useless info
• http://imageoptim.com/ or similar
• result depends on the images. from 10% to 80%
• see optipng http://optipng.sourceforge.net/

[jeromeetienne]

gzip compression

• use 7zip one. more efficient that gzip one
  • "" 7-zip may generate gzip files 5-15% smaller than other gzip compressors. '7za a -tgzip -mx=9 -mfb=257 -mpass=15' Very slow."" from https://twitter.com/davidgaleano/status/230274225431273472
  • much slower to compress. Seems 25 times slower! This is ok this is done once and for all
• in the client, use browser gzip instead of javascript one
• http://feeding.cloud.geek.nz/2011/01/serving-pre-compressed-files-using.html seems to use this

some results

• 3jsbg is a simple binary format

-rw-r--r--  1 jeromeetienne  staff  2789404 Aug 27 13:14 sample.3jsbg
-rw-r--r--  1 jeromeetienne  staff   612459 Aug 27 13:29 sample.3jsbg.7z
-rw-r--r--  1 jeromeetienne  staff   672490 Aug 27 13:21 sample.3jsbg.gz

• for x3d

-rw-r--r--   1 jeromeetienne  staff  7318583 Aug 16 19:06 world127_1.x3d
-rw-r--r--   1 jeromeetienne  staff   906250 Aug 27 13:35 world127_1.x3d.7z
-rw-r--r--   1 jeromeetienne  staff  1222796 Aug 27 13:33 world127_1.x3d.gz

[jeromeetienne]

ask for a trombinoscope

• not the pictures themselves
• more the name of each member of the tech team, and a very short description of what they do

done

• sent by @tomgauthier via email

[jeromeetienne]

model size in ascii vs binary

his goal was to reduce the parsing time. so it upload directly the typedarray to send to webgl. btw for gzip he add a header in server, and the browser decompress it natively.

trigrou: -rw-r--r--    1 trigrou  staff  364K Jul 27 14:05 test.osgjs
[2:06pm] trigrou: en json pure
[2:06pm] trigrou: 109K en json.gzip
[2:08pm] trigrou: en binaire ça fait 184K incompatible encoding
[2:09pm] trigrou: en binaire.gz ça fait 97.7

[jeromeetienne]

virtual texturing to boost 'time to play'

• http://www.chromeexperiments.com/detail/antelope-island/

papers from bai

bai: I have some papers which describe the techniques I'm using - it's kind of a blend of a couple different ones
[2:15pm] bai: http://baicoianu.com/~bai/ebooks/SphericalClipmaps_Electronic.pdf
[2:16pm] bai: and http://http.developer.nvidia.com/GPUGems2/gpugems2_chapter02.html is the same technique but in a plane, which is easier to understand first

[jeromeetienne]

in case of doubt use http://google-styleguide.googlecode.com/svn/trunk/javascriptguide.xml

[jeromeetienne]

security glitch

• la base de donnee est sur une url public facilement devinable. et le password. cest root/nomduproduit...
• Change it

[jeromeetienne]

usage of spdy

• to speed up download ?
• https://www.youtube.com/watch?v=zN5MYf8FtN0

[jeromeetienne]

har visualisation

[7:50pm] paul_irish: http://www.softwareishard.com/har/viewer/ [7:50pm] paul_irish: is most popular [7:50pm] paul_irish: http://s3u.github.com/har-view/ is cool too [7:50pm] paul_irish: and http://pcapperf.appspot.com/ seems nice

[jeromeetienne]

use require.js to pack js?

• is that better than a manual concat?