Java-Gaming.org    
Featured games (81)
games approved by the League of Dukes
Games in Showcase (494)
Games in Android Showcase (114)
games submitted by our members
Games in WIP (563)
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  
  Got XYZ cordinates, now I have to move it further away from its current location  (Read 621 times)
0 Members and 1 Guest are viewing this topic.
Offline SgtAhri

Junior Newbie





« Posted 2012-07-06 09:42:04 »

Hey

I'm currently programming with JavaScript(not Java) and Three.js but my problem is not related to which language I use but some XYZ cordinate math which isn't one of my strong points.


I am trying to draw a line from camera.position to mouse click and it works fine, I just cannot figure out how to move the end location further away.

1  
2  
3  
4  
5  
6  
   var geometry = new THREE.Geometry();
   //start position
  geometry.vertices.push( camera.position );
   //end position
  geometry.vertices.push( new THREE.Vector3( vector.x, vector.y, vector.z ) );  
   var line = new THREE.Line( geometry, new THREE.LineBasicMaterial( { color: 0x0000FF, opacity: 1 } ) );


This piece of code does work but the line itself it extremely short, I have tried to multiply every value by 2 but that only works in some directions, if I move the camera to another direction the line is pointing the wrong direction and not towards my click, so I think my cordinate math is way off.

My end goal is to do raycast with the mouse click, sometimes the ray does hit something and sometimes it does not, so I'm trying to debug it by displaying a line.
Offline Waterwolf

Junior Member


Medals: 3



« Reply #1 - Posted 2012-07-07 12:24:15 »

EndPoint + EndPoint.normalize().mul(amount)
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.

Dwinin (21 views)
2014-09-12 09:08:26

Norakomi (55 views)
2014-09-10 13:57:51

TehJavaDev (66 views)
2014-09-10 06:39:09

Tekkerue (33 views)
2014-09-09 02:24:56

mitcheeb (54 views)
2014-09-08 06:06:29

BurntPizza (38 views)
2014-09-07 01:13:42

Longarmx (24 views)
2014-09-07 01:12:14

Longarmx (30 views)
2014-09-07 01:11:22

Longarmx (28 views)
2014-09-07 01:10:19

mitcheeb (37 views)
2014-09-04 23:08:59
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

List of Learning Resources
by SilverTiger
2014-07-31 16:26:06

List of Learning Resources
by SilverTiger
2014-07-31 11:54:12

HotSpot Options
by dleskov
2014-07-08 01:59:08
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!