Hi !
Featured games (91)
games approved by the League of Dukes
Games in Showcase (757)
Games in Android Showcase (229)
games submitted by our members
Games in WIP (843)
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  
  [SOLVED] Terrain Rotation and Zooming without Redraw  (Read 1673 times)
0 Members and 1 Guest are viewing this topic.
Offline ThreadedProcess

Senior Newbie

« Posted 2011-07-21 18:13:27 »

I'm writing my first 3D game in Java with LWJGL, and I am having some problems with rendering terrain. The terrain is planned to be massive, 100 000 000 squares. About 40 000 square kilometres. I know that I can't draw them all at once, so I started with a much smaller, 200x200 area. I use a heightmap to load height values from, and then use TRIANGLE_STRIPS to draw rows. It can render really fast, but I run into a potentially serious problem. Whenever I try and rotate or zoom in using my keyboard, it flickers. It takes less than a second to draw, but it does flicker. I can image that that will become a very serious problem when I have a massive terrain. It requires me to redraw everything every time the view changes.

I was wondering if there was a way to manipulate the camera view without having to redraw the terrain.

Offline Eli Delventhal

JGO Kernel

Medals: 42
Projects: 11
Exp: 10 years

Game Engineer

« Reply #1 - Posted 2011-07-21 18:22:55 »

As far as I know, there is not. But this is a time to use VBOs or display lists.

See my work:
OTC Software
Offline ThreadedProcess

Senior Newbie

« Reply #2 - Posted 2011-07-21 18:47:35 »

Well, I do already use Display Lists. I use one for the terrain itself, but when it is rotated or zoomed, I have to recreate the display list. Unless I have something fundamentally wrong.
Games published by our own members! Check 'em out!
Legends of Yore - The Casual Retro Roguelike
Offline ThreadedProcess

Senior Newbie

« Reply #3 - Posted 2011-07-21 18:51:16 »

Oh. Wait a minute. I guess I WAS doing something fundamentally wrong  Clueless. I changed some stuff around, and now it is so incredibly smooth I just want to hug it. Sorry about that.  Cool
Pages: [1]
  ignore  |  Print  

EgonOlsen (37 views)
2018-06-10 19:43:48

EgonOlsen (20 views)
2018-06-10 19:43:44

EgonOlsen (39 views)
2018-06-10 19:43:20

DesertCoockie (186 views)
2018-05-13 18:23:11

nelsongames (122 views)
2018-04-24 18:15:36

nelsongames (121 views)
2018-04-24 18:14:32

ivj94 (861 views)
2018-03-24 14:47:39

ivj94 (122 views)
2018-03-24 14:46:31

ivj94 (758 views)
2018-03-24 14:43:53

Solater (139 views)
2018-03-17 05:04:08
Java Gaming Resources
by philfrei
2017-12-05 19:38:37

Java Gaming Resources
by philfrei
2017-12-05 19:37:39

Java Gaming Resources
by philfrei
2017-12-05 19:36:10

Java Gaming Resources
by philfrei
2017-12-05 19:33:10

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 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‑
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!