Large object in OpenGL look ugly???

Lode · 2002-07-30T09:09:54

I finally started the development of a 3D space game, I can move around the spaceship with real Newtonion acceleration/velocity physics already But of course a space game will require large planets, and I took an OpenGL unit of "1" to be 1 meter. So a realistic planet will have to be around the 20.000.000 OGL units. But just to test I made some cube-planets, and even if they're only 1000 units they're uglier than the EXACT same scene 1000 times smaller! This picture shows the difference: note the pink pixels on the right picture, that is another side of the cube that should be invisible. But for bigger scenes with more cubes at larger distances, it looks even worse that this. What can I do against that? EDIT: this pic shows it when I made the cubes 1.000.000 OGL units [edited by - Lode on July 30, 2002 7:24:44 AM]

Graphics and GPU Programming Programming OpenGL

Started by Lode July 30, 2002 06:21 AM

9 comments, last by Lode 21 years, 8 months ago

phueppl1

122

July 30, 2002 09:09 AM

You might run into floating precision problems doing so.. not only for z-buffer errors, but also for object detail.. polys might start jumping around at far distance from the origin. you might wanna try doubles instead of floats.
ok,
hope that helped,
cya,
Phil

Visit Rarebyte!
and no!, there are NO kangaroos in Austria (I got this questions a few times over in the states

)

Visit Rarebyte! and no!, there are NO kangaroos in Austria (I got this question a few times over in the states ;) )

Large object in OpenGL look ugly???

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Large object in OpenGL look ugly???

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