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  
  Inward-pointing Normal Vector?  (Read 1755 times)
0 Members and 1 Guest are viewing this topic.
Offline kingcu

Junior Newbie





« Posted 2005-11-18 02:49:32 »

 Hi,

I know this is weird. I have some problem with the direction of the normal. I know it should be pointing outward; however, when I try to disply a 3D unit cube made of 6 polygons, for each polygon, I have to set the normal to point toward the inside of the cube to get the proper color. Otherwise, if I use the regular outward-pointing normals, everything is black. I am assuming the x-y-z coordinate is a right-hand coordinate system, with positive x point to the right hand side of the screen, positive y point upward and positive z pointing out the screen; also, I am specifying the vertices in a counter clockwise order if looking from the outside.

I am using JOGL. And here are what I did:

1. Enable depth test;
2. Enable lighting;
3. Enable light0;
4. Set light properties (ambient, etc);
5. Set the material properties;
6. Enable GL_NORMALIZE;

I didn't touch either the projection matrix or the modalview matrix.

Any one has any idea how this could be?

Thank you,
wt
Offline Vage

Senior Newbie




learning++;


« Reply #1 - Posted 2005-11-20 00:23:14 »

I think you posted in the wrong forum  Grin

This is OpenAL, not OpenGL...

Personally, you could strap me into a mech cockpit with 47 virtual HUD displays, two complex hand controls and foot pedals and I'd be grinning like the gamer freak I am.
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 (30 views)
2014-12-15 09:26:44

Mr.CodeIt (23 views)
2014-12-14 19:50:38

BurntPizza (49 views)
2014-12-09 22:41:13

BurntPizza (83 views)
2014-12-08 04:46:31

JscottyBieshaar (44 views)
2014-12-05 12:39:02

SHC (58 views)
2014-12-03 16:27:13

CopyableCougar4 (56 views)
2014-11-29 21:32:03

toopeicgaming1999 (122 views)
2014-11-26 15:22:04

toopeicgaming1999 (112 views)
2014-11-26 15:20:36

toopeicgaming1999 (32 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!