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General Forums => Aces High General Discussion => Topic started by: Oldman731 on August 02, 2009, 04:19:04 PM

Title: Bump map terrain
Post by: Oldman731 on August 02, 2009, 04:19:04 PM: What does that mean?

What does it do?

- oldman
Title: Re: Bump map terrain
Post by: Lusche on August 02, 2009, 04:22:35 PM: Quote
Bump mapping is a computer graphics technique where at each pixel, a perturbation to the surface normal of the object being rendered is looked up in a texture map and applied before the illumination calculation is done (see, for instance, Phong shading). The result is a richer, more detailed surface representation that more closely resembles the details inherent in the natural world.

http://en.wikipedia.org/wiki/Bump_mapping
Title: Re: Bump map terrain
Post by: USRanger on August 02, 2009, 04:23:45 PM: In other words, it makes the ground look "bumpy". ;)
Title: Re: Bump map terrain
Post by: Strip on August 02, 2009, 04:37:51 PM: Quote from: USRanger on August 02, 2009, 04:23:45 PM
In other words, it makes the ground look "bumpy". ;)

Einstein has spoke....

:lol
Title: Re: Bump map terrain
Post by: thndregg on August 02, 2009, 04:44:36 PM: "Phong shading" (Sounds like a few beers and something kinky. :D)
Title: Re: Bump map terrain
Post by: USRanger on August 02, 2009, 05:22:16 PM: Quote from: Strip on August 02, 2009, 04:37:51 PM
Einstein has spoke....

:lol

(http://img39.imageshack.us/img39/4544/laughingsmiley014.gif) (http://img39.imageshack.us/i/laughingsmiley014.gif/)
Title: Re: Bump map terrain
Post by: R 105 on August 02, 2009, 05:49:25 PM: Thanks I had no clue what it meant I just turned it off because someone said it would help my frame rate.
Title: Re: Bump map terrain
Post by: USRanger on August 02, 2009, 05:51:28 PM: It may. I only lose 2 fps though with it on and it makes the terrain much more realistic looking.
Title: Re: Bump map terrain
Post by: Oldman731 on August 03, 2009, 11:06:41 AM: Quote from: Lusche on August 02, 2009, 04:22:35 PM
http://en.wikipedia.org/wiki/Bump_mapping

Thanks, Lusche. So turning it off might speed things up for the folks who are on the thin edge of playability?

- oldman
Title: Re: Bump map terrain
Post by: RufusLeaking on August 03, 2009, 11:23:56 AM: Quote from: USRanger on August 02, 2009, 05:51:28 PM
It may. I only lose 2 fps though with it on and it makes the terrain much more realistic looking.
Similar results here. It is the only advanced graphics option I have turned on. It helps me avoid augering, especially over water.
Title: Re: Bump map terrain
Post by: Lusche on August 03, 2009, 11:37:31 AM: Quote from: Oldman731 on August 03, 2009, 11:06:41 AM
Thanks, Lusche. So turning it off might speed things up for the folks who are on the thin edge of playability?

- oldman

It's always worth a try though I have, as others do, the impression that potential gains are quite small.
But it doesn't hurt to test, particulary on very old machines.
Title: Re: Bump map terrain
Post by: 715 on August 03, 2009, 01:39:21 PM: It changes the shading of the ground to give the appearance of texture. It doesn't change or add any polygons and the ground is still flat even though it looks like it is bumpy.
Title: Re: Bump map terrain
Post by: HPriller on August 03, 2009, 02:25:35 PM: Boiled down it makes all those little pock-marks in the terrain that you only see at extremely close ranges (like under 300ft). A slight graphical enhancement for GV and very low alt situations.
Title: Re: Bump map terrain
Post by: Krusty on August 03, 2009, 02:28:20 PM: It takes almost no power to display. I get 60 fps with bump on, but details off, but I get unplayable teen digits with details on and bump off.
Title: Re: Bump map terrain
Post by: Bruv119 on August 03, 2009, 02:29:28 PM: i found this setting to only make an adverse effect on frame rates down low in the weeds. A small one at that.
Title: Re: Bump map terrain
Post by: Dux on August 03, 2009, 02:32:06 PM: The effect is completely unnoticeable at high-noon... only when the sunlight comes in at angles does it become apparent. Important to know if you're trying to look at it offline where the time of day always defaults to 1200.