OpenGL provides ugly Textures

Graphics and GPU Programming Programming OpenGL

Started by PGmeiner September 07, 2001 12:53 PM

6 comments, last by PGmeiner 22 years, 7 months ago

122

Author

September 07, 2001 12:53 PM

Hello, I realized a terrain-visualization with triangles. Above the triangles i bind a texture. I put all the triangles to be drawn in a display list. Now when i''m moving through the terrain the hills which are far away looks ugly and a little bit strange. What can be the reason for that behaviour. Thanks in advance Peter Gmeiner

Peter Gmeiner

Sneftel

1,788

September 07, 2001 01:12 PM

"ugly and a little bit strange" is far too ambiguous to be useful in problem solving... however, look into mip-mapping for a possible solution.

mkaltner

122

September 07, 2001 05:20 PM

He''s right, mip-mapping would likely help you out a lot.

- Mike

"The important thing to remember when programming is: When you're 90% complete, there's still 50% more to go."

PGmeiner

122

Author

September 09, 2001 07:30 AM

OK!

It''s a little bit vague, so please look at a screenshot of the this at: http://members.tripod.de/pgmeiner/Terrain.jpg
The mipmaps i already implemented but the same ugly effects are there.

Peter Gmeiner

Peter Gmeiner

Null and Void

1,088

September 09, 2001 10:56 AM

That looks like it could be zbuffer fighting. Try upping the zbuffer''s size. If you have to, use two different project matricies each pass, one for distant objects, one for near objects. Of course, to do that you have to sort the polygons to fit into those two categories.

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