Java-Gaming.org Hi !
Featured games (90)
games approved by the League of Dukes
Games in Showcase (714)
Games in Android Showcase (214)
games submitted by our members
Games in WIP (788)
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  
  Overlaying a colour over existing colour  (Read 1922 times)
0 Members and 1 Guest are viewing this topic.
Offline Porlus

Junior Devvie





« Posted 2012-05-24 02:36:52 »

Hi, I've just been trying to think about how I'd do this but I've hit a brick wall. I have a pixel array containing the colours held at each pixel on the screen, but I'm trying to overlay a certain colour. I started by just looping through each pixel in the array and bitwise ANDing each colour by 0xFFFF0000 to give it a red tinge. However what I really need it to do is overlay a certain transparency of this colour, so ranging from a slight tinge to completely red with none of the original pixels showing. Does anyone know how I could achieve this?

Thanks,
Paul
Offline ra4king

JGO Kernel


Medals: 471
Projects: 3
Exp: 5 years


I'm the King!


« Reply #1 - Posted 2012-05-24 03:06:44 »

Simply modify the value of alpha or the value of the red component.

Offline Porlus

Junior Devvie





« Reply #2 - Posted 2012-05-24 03:35:06 »

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

 
CopyableCougar4 (103 views)
2017-03-24 15:39:42

theagentd (85 views)
2017-03-24 15:32:08

Rule (146 views)
2017-03-19 12:43:22

Rule (133 views)
2017-03-19 12:42:17

Rule (139 views)
2017-03-19 12:36:21

theagentd (151 views)
2017-03-16 05:07:07

theagentd (147 views)
2017-03-15 22:37:06

theagentd (127 views)
2017-03-15 22:32:18

theagentd (121 views)
2017-03-15 22:31:11

ral0r2 (155 views)
2017-03-03 11:52:41
List of Learning Resources
by elect
2017-03-13 14:05:44

List of Learning Resources
by elect
2017-03-13 14:04:45

SF/X Libraries
by philfrei
2017-03-02 08:45:19

SF/X Libraries
by philfrei
2017-03-02 08:44:05

SF/X Libraries
by SkyAphid
2017-03-02 06:38:56

SF/X Libraries
by SkyAphid
2017-03-02 06:38:32

SF/X Libraries
by SkyAphid
2017-03-02 06:38:05

SF/X Libraries
by SkyAphid
2017-03-02 06:37:51
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!