CGTalk - best way to visualize a heightfield in OpenGL

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ehmdjii

01-08-2004, 09:23 PM

hello,

what would be the best way to draw a heightfield with OpenGl?
normally you have the data in a two-dimensional array.

i tried it with GL_QUADS and GL_TRIANGLE_STRIPS but the outcome is a little strange as you can see in this screenshot:

http://www.embege.com/misc/bad_hf.jpg

the problem is that there is a certain orientation of the polygons which shouldnt be there.

thanks!

stew

01-09-2004, 06:13 AM

It looks to me like your tesselation is not fine enough. Also, when using quads, make sure they're planar.

markyjerky

01-16-2004, 05:12 PM

Looks to me like the field function ...

Is not dynamic enough over that range and also like the other respondent said ... not enough resolution.

ehmdjii

01-16-2004, 10:45 PM

no
meanwhile i tried different approches.
now im erndering it linewise with single triangels. this works fine and i get a smooth heightfield.

thanks anyways.

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