Java-Gaming.org Hi !
Featured games (83)
games approved by the League of Dukes
Games in Showcase (539)
Games in Android Showcase (132)
games submitted by our members
Games in WIP (603)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  Alpha Optimization  (Read 871 times)
0 Members and 1 Guest are viewing this topic.
Offline renanse

Junior Devvie




Intelligence is light to a dark world.


« Posted 2004-01-07 12:54:40 »

Ok, me again with another question for the gurus...  (Hopefully my questions are becoming less newbie...  Wink)

In another post I mentioned that I've been porting a particle system.  In that system, each particle can have an alpha value.  When the alpha value is less than 1.0, the system slows down quite a bit.  iirc, this is do to how blending works.  Is this something I can optimize...?  I've thought about using an off screen buffer to render the particles and then blend them all at once into the scene, but that seems like it might not give the same effect unless I use blending on that other buffer anyhow.

Any thoughts?

Renanse  (ruh-NON-say)
Offline princec

« JGO Spiffy Duke »


Medals: 434
Projects: 3
Exp: 16 years


Eh? Who? What? ... Me?


« Reply #1 - Posted 2004-01-07 13:30:32 »

No, there's nothing you can do about this. If you want blending, you've got to pay for it.

Orangytang had a suggestion of setting the alpha test to some slightly higher value, say 0.1f, which would cut out a lot of almost-completely-invisible pixels and maybe save you a bit of fill rate.

Cas Smiley

Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

 

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

rwatson462 (36 views)
2014-12-15 09:26:44

Mr.CodeIt (29 views)
2014-12-14 19:50:38

BurntPizza (61 views)
2014-12-09 22:41:13

BurntPizza (98 views)
2014-12-08 04:46:31

JscottyBieshaar (58 views)
2014-12-05 12:39:02

SHC (74 views)
2014-12-03 16:27:13

CopyableCougar4 (76 views)
2014-11-29 21:32:03

toopeicgaming1999 (137 views)
2014-11-26 15:22:04

toopeicgaming1999 (127 views)
2014-11-26 15:20:36

toopeicgaming1999 (37 views)
2014-11-26 15:20:08
Resources for WIP games
by kpars
2014-12-18 10:26:14

Understanding relations between setOrigin, setScale and setPosition in libGdx
by mbabuskov
2014-10-09 22:35:00

Definite guide to supporting multiple device resolutions on Android (2014)
by mbabuskov
2014-10-02 22:36:02

List of Learning Resources
by Longor1996
2014-08-16 10:40:00

List of Learning Resources
by SilverTiger
2014-08-05 19:33:27

Resources for WIP games
by CogWheelz
2014-08-01 16:20:17

Resources for WIP games
by CogWheelz
2014-08-01 16:19:50

List of Learning Resources
by SilverTiger
2014-07-31 16:29:50
java-gaming.org is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑gaming.org
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!