PDA

View Full Version : Maps...



CyBBe
08-11-2000, 10:59 AM
Hello!

I'm about to load maps in my engine, which type should I use?

I'm doing an outdoor motor, the maps should be like BattleZone, MotoCross Madness, Ground Control maps or something similar to those...

Which technique should I use? BSP? Quad Tree?

shawge
08-11-2000, 02:08 PM
Are you asking what file format you should use or what kind of LOD scheme you should implement?

DFrey
08-11-2000, 02:34 PM
If you want to do a terrain engine, look into height maps, quad-trees, and ROAM.

ngill
08-11-2000, 02:36 PM
I agree with DFrey, apparently ROAM is the most popular these days...

shawge
08-11-2000, 02:57 PM
What about VIPM?

DFrey
08-11-2000, 04:16 PM
What is VIPM? That doesn't seem to ring a bell with me. Altavista has proved fruitless doing a search on it.


[This message has been edited by DFrey (edited 08-11-2000).]

Thr33d
08-11-2000, 06:23 PM
i don't especially like roam because it modifies the landscape and makes it look like it's rippling... however if you have data that would work best with that lod method - use it.
i liked the landscape engine currently at the top of news on www.opengl.org (http://www.opengl.org) (up a dir)
however this would probably only work if you could make it in a similar manner.

-mike

shawge
08-11-2000, 08:05 PM
VIPM == View Independant Progressive Meshes
A type of runtime triangulated irregular network. Another is VDPM, view dependant progressive meshes.

In VIPM, the collapse order is fixed. The only thing the observer's position does is choose how many tris to expand/collapse to.

In VDPM, the collapse order is varied. The order of collapse depends on where the view is, so tris further away from the camera get collapsed before tris near the camera.

The demo Thr33d mentioned appears to use some sort of VDPM as its LOD. Quad-trees and ROAM use regular grids.

CyBBe
08-11-2000, 10:54 PM
This was just was I searched for, but where can I find tutorials/examples of this kind of "engines", that uses Quad-Trees, ROAM, VIPM or height maps...?

Thanx

CyBBe
08-11-2000, 11:27 PM
Is Octree an option for an outdoor engine or is it more for indoors?

CyBBe
08-12-2000, 11:10 AM
Is there any tutorials on any of these kind of maps?

plz...

shawge
08-13-2000, 03:53 PM
Search flipcode.com, gamasutra.com and gamedev.net for the tutorials. There were ROAM and quadtree demos there within the last few months.