Java-Gaming.org    
Featured games (81)
games approved by the League of Dukes
Games in Showcase (494)
Games in Android Showcase (113)
games submitted by our members
Games in WIP (562)
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  
  Display List Oddity  (Read 1102 times)
0 Members and 1 Guest are viewing this topic.
Offline Mojomonkey

Senior Member




ooh ooh eee eeee


« Posted 2003-06-22 14:50:02 »

I was rendering 2500 pyramids. These pyramids were frustum culled, without display lists, I was getting about 55 fps rendering 615 or so at a time. I figured an easy speed up would be to render these as display lists. That would cut down on the gl calls and thus the JNI calls. However, I obtained no speed benefit, in fact, it was a little slower. These a completely static models, I was expecting a decent frame rate increase. Any ideas?

Don't send a man to do a monkey's work.
Offline whome

Junior Member




Carte Noir Java


« Reply #1 - Posted 2003-06-22 15:41:30 »

an example sourcecode can be <put your link here> downloaded here.
Offline Mojomonkey

Senior Member




ooh ooh eee eeee


« Reply #2 - Posted 2003-06-22 17:44:41 »

Not quite sure what you are saying.

Don't send a man to do a monkey's work.
Games published by our own members! Check 'em out!
Legends of Yore - The Casual Retro Roguelike
Offline princec

JGO Kernel


Medals: 376
Projects: 3
Exp: 16 years


Eh? Who? What? ... Me?


« Reply #3 - Posted 2003-06-22 18:33:05 »

What this tells you is exactly what it looks like: it's slower to call a tiny display list 600 times than it is to do 600 calls to glDrawElements.

Display lists are used less and less in GL now (and in fact don't even work properly on some cards - grrr!) as they are very inflexible.


Cas Smiley

Offline Mojomonkey

Senior Member




ooh ooh eee eeee


« Reply #4 - Posted 2003-06-22 18:56:32 »

Thanks Cas. I was hoping for a quick and easy speed enhancement, but I guess it's not to be. Time I learned to use Vertex Arrays properly.

Don't send a man to do a monkey's work.
Offline princec

JGO Kernel


Medals: 376
Projects: 3
Exp: 16 years


Eh? Who? What? ... Me?


« Reply #5 - Posted 2003-06-23 06:45:09 »

The very fastest bestest new way to do it is ARB_vertex_buffer_object, but hardly anyone has drivers for it, so you'll have to revert to NV_vertex_array_range2 or ATI_vertex_buffer_object, and then glDrawRangeElements, then EXT_compiled_vertex_array, and finally using glDrawElements on its own without any help from extensions.

Cas Smiley

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 (15 views)
2014-09-12 09:08:26

Norakomi (45 views)
2014-09-10 13:57:51

TehJavaDev (57 views)
2014-09-10 06:39:09

Tekkerue (26 views)
2014-09-09 02:24:56

mitcheeb (49 views)
2014-09-08 06:06:29

BurntPizza (33 views)
2014-09-07 01:13:42

Longarmx (19 views)
2014-09-07 01:12:14

Longarmx (21 views)
2014-09-07 01:11:22

Longarmx (20 views)
2014-09-07 01:10:19

mitcheeb (30 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!