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 (750)
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  
  getting xyz from a bytebuffer  (Read 1574 times)
0 Members and 1 Guest are viewing this topic.
Offline Gorgorath

Junior Devvie

Java games rock!

« Posted 2007-02-01 11:03:02 »

i have a bytebuffer this way
x, y, z <- 3 float
r, g, b<- 3 byte
x,y,z,   <- 3 float
r, g, b <- 3 byte

this are just 2 vertices i can give it directly to opengl( gldrawElements) with some stride between in
but are there methods in java to extract just the vertices.ByteBuffer.asFloatBuffer doeesn't work because
i dont store my vertices consectutive..


Offline princec

« JGO Spiffy Duke »

Medals: 783
Projects: 3
Exp: 16 years

Eh? Who? What? ... Me?

« Reply #1 - Posted 2007-02-01 14:25:44 »

Create several FloatBuffers which wrap the existing buffer, offset by the appropriate number of bytes. But you really don't want to be extracting data if you can help it, just write it.

Cas Smiley

Offline Riven

« JGO Overlord »

Medals: 1228
Projects: 4
Exp: 16 years

Hand over your head.

« Reply #2 - Posted 2007-02-01 20:29:51 »

you'd make your life a heck of a lot easier if you'd add a padding byte to the RGB (A), then all your floats are 32bit aligned, and a single FloatBuffer+ByteBuffer combo would do.

Hi, appreciate more people! Σ ♥ = ¾
Learn how to award medals... and work your way up the social rankings!
Pages: [1]
  ignore  |  Print  
You cannot reply to this message, because it is very, very old.

orrenravid (171 views)
2016-07-16 03:57:23

theagentd (241 views)
2016-07-11 14:28:54

Hydroque (324 views)
2016-07-06 05:56:57

Hydroque (476 views)
2016-07-03 08:52:54

GrandCastle (358 views)
2016-07-01 09:13:47

GrandCastle (350 views)
2016-07-01 09:09:45

CopyableCougar4 (405 views)
2016-06-25 16:56:52

Hydroque (380 views)
2016-06-22 02:17:53

SwampChicken (350 views)
2016-06-20 13:22:57

SwampChicken (290 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 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!