Java-Gaming.org Hi !
Featured games (90)
games approved by the League of Dukes
Games in Showcase (683)
Games in Android Showcase (196)
games submitted by our members
Games in WIP (751)
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  
  Picking in a 3D world  (Read 1757 times)
0 Members and 1 Guest are viewing this topic.
Offline AstonJay32

Junior Newbie




Java games rock!


« Posted 2004-04-27 15:35:54 »

I've creating simple 3D world in which the user can walk around, enter buildings, and pick up objects using OpenGl and of course Java.  I'd love to be able to allow the user the 'shoot' objects by clicking on them.  I've seen picking tutorials out there by all of them assume a 2D world.  Is there a good tutorial for doing selection/picking in a 3D world WITHOUT using the Java3D API?

Thanks alot for your help
Offline Orangy Tang

JGO Kernel


Medals: 57
Projects: 11


Monkey for a head


« Reply #1 - Posted 2004-04-27 15:52:29 »

First you'll need to create a ray for the users click- unproject a couple of points with gluUnproject (with different window depths) and make a ray though them. Then you 'just' need to check that ray against your world and see what it intersects, the math for that is the same regardless of what API you use. Probably find something useful here: http://www.magic-software.com/

[ TriangularPixels.com - Play Growth Spurt, Rescue Squad and Snowman Village ] [ Rebirth - game resource library ]
Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

 
orrenravid (220 views)
2016-07-16 03:57:23

theagentd (290 views)
2016-07-11 14:28:54

Hydroque (378 views)
2016-07-06 05:56:57

Hydroque (529 views)
2016-07-03 08:52:54

GrandCastle (400 views)
2016-07-01 09:13:47

GrandCastle (393 views)
2016-07-01 09:09:45

CopyableCougar4 (446 views)
2016-06-25 16:56:52

Hydroque (420 views)
2016-06-22 02:17:53

SwampChicken (386 views)
2016-06-20 13:22:57

SwampChicken (306 views)
2016-06-20 13:22:49
Making a Dynamic Plugin System
by Hydroque
2016-06-25 00:13:25

Java Data structures
by BinaryMonkL
2016-06-13 21:22:09

Java Data structures
by BinaryMonkL
2016-06-13 21:20:42

FPS Camera Tutorial
by Hydroque
2016-05-22 05:40:58

Website offering 3D Models specifically for games for free
by vusman
2016-05-18 17:23:09

Website offering 3D Models specifically for games for free
by vusman
2016-05-09 08:50:56

Website offering 3D Models specifically for games for free
by vusman
2016-05-06 11:10:21

Website offering 3D Models specifically for games for free
by vusman
2016-04-29 12:56:17
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!