Terrain to support proper Level of Detail

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Terrain to support proper Level of Detail

Postby crazoz » Sat Jan 30, 2010 7:19 pm

Good Evening!

Well, I read of this problem before but it doesn't seem to be fixed yet: The terrain has absolutely no level of detail, every single triangle seems to be rendered! That's not just slow, it's terrible! It makes the complete Terrain future absolutely unusable! Is there any way to get the LOD back?

Best Regards,
crazoz

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Re: Terrain to support proper Level of Detail

Postby Knightmare » Sat Jan 30, 2010 9:23 pm

We know good optimization, but its required 3.0 shaders support, so terrains will not work on old hardware. We try found good fixed function realization as soon as possible, or may be use something like original Blitz3D.
Image
Image

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Re: Terrain to support proper Level of Detail

Postby crazoz » Sat Jan 30, 2010 9:29 pm

I guess any solution is better than no solution, the current terrain implementation runs terribly slow on a resolution higher than 256x256.

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Re: Terrain to support proper Level of Detail

Postby eftwelve » Mon Feb 01, 2010 9:39 am

B3d uses the ROAM method i think and its slow and ugly. Duplicating that in Xors would be a step backward imo.
There are a lot of modern and efficient lod terrain algos out there. Like Geo-mipmapping.
http://www.gamedev.net/columns/hardcore/geomorph/

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Re: Terrain to support proper Level of Detail

Postby crazoz » Mon Feb 01, 2010 4:31 pm

I wonder whether there is any timespan on when this feature will be released?

Best Regards,
crazoz

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Re: Terrain to support proper Level of Detail

Postby Refuse » Sun Mar 07, 2010 12:36 pm

Knightmare wrote:We know good optimization, but its required 3.0 shaders support, so terrains will not work on old hardware. We try found good fixed function realization as soon as possible, or may be use something like original Blitz3D.


Xors3d supports deferred rendering. The deferred rendering works on only shader model 3.0 supporded or better video card with acceptable speed, so I think, a shader model 3.0 compatible terrain system is the best solution for Xors3d. :-D

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Re: Terrain to support proper Level of Detail

Postby Hezkore » Fri Mar 19, 2010 2:46 pm

I'd like to see a terrain system that works on low-level GPU's too, not just Shader 3.0
A nice feature would be if Xors3D detected if you supported Shader 3.0 and if so used that terrain LOD technique and if not, it'd use something else (B3D like?) for the terrain.
Either way, it really must work on GPU's with lower Shader versions.
And over all, the terrain does need some work...

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Re: Terrain to support proper Level of Detail

Postby Refuse » Sun Mar 28, 2010 6:19 pm

Any news about terrain system?

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Re: Terrain to support proper Level of Detail

Postby Knightmare » Sun Mar 28, 2010 6:25 pm

We are already working on a new terrain system.
Image
Image

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Re: Terrain to support proper Level of Detail

Postby Refuse » Mon Mar 29, 2010 8:56 pm

:tasty:

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