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Off-Topic Discussion => General Discussion => Topic started by: Fineus on May 23, 2001, 09:50:00 am

Title: An experiment in bump mapping...
Post by: Fineus on May 23, 2001, 09:50:00 am
I was inspired a while ago by the creation of bump mapping on ships and decided to try making one for an Aeolus cruiser. I'm not sure wether I like the effect or not, or wether it's worth creating similar maps for all the other FS ships for use in future renders. Anyways, any input would be welcome on the bump mapping maps of this picture.

 (http://www.3dap.com/hlp/staff/thunder/bumpa.jpg)

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[This message has been edited by Thunder (edited 05-23-2001).]
Title: An experiment in bump mapping...
Post by: QXMX on May 23, 2001, 09:55:00 am
What exactly is Bump-mapping?

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Title: An experiment in bump mapping...
Post by: Fineus on May 23, 2001, 10:03:00 am
It's where you add "bumps" to the image maps. I did mine by pumping up the contrast on a copy of the maps. I'll try and post a comparison pic later...

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Title: An experiment in bump mapping...
Post by: Fineus on May 23, 2001, 10:11:00 am
Heres a contrast between the two, apologies for the difference in background/lighting.

  (http://www.3dap.com/hlp/staff/thunder/bumpa2.jpg)  
Title: An experiment in bump mapping...
Post by: QXMX on May 23, 2001, 10:23:00 am
It looks more rough on the left.  It gives it a real metallic look,  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/smile.gif)

Have you tried Shivan vessels yet?

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Co-Creator, GroundZero ("http://www.subspacezero.com")
Title: An experiment in bump mapping...
Post by: Fineus on May 23, 2001, 10:25:00 am
Nope, it takes ages to copy/paste and alter all the maps then get them working, so I jut wanted to do one ship and see what the reaction was. The Aeolus has a nice texture anyway so I chose it  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/smile.gif)
Title: An experiment in bump mapping...
Post by: wEvil on May 23, 2001, 10:33:00 am
got PRman?

try a displacement map with that (well...they're the same thing as far as rendermans' concerned anyway)
Title: An experiment in bump mapping...
Post by: Bobboau on May 23, 2001, 10:43:00 am
you need som better reflectance effects (I don't mean mirror, though that wouldn't hurt) try useing the conductor reflectince with the rughness turrned all the way down, remember to enable ray tracing and set quality to high.

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Title: An experiment in bump mapping...
Post by: Fozzy on May 23, 2001, 10:54:00 am
Nice picture keep them coming.
Title: An experiment in bump mapping...
Post by: Fineus on May 23, 2001, 11:26:00 am
 
Quote
Originally posted by Bobboau:
you need som better reflectance effects (I don't mean mirror, though that wouldn't hurt) try useing the conductor reflectince with the rughness turrned all the way down, remember to enable ray tracing and set quality to high.
Can this be done with 3D Exploration? I haven't seen such options... if theres another way (by altering texture maps) then I can manage it  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/smile.gif)



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Title: An experiment in bump mapping...
Post by: Sushi on May 23, 2001, 03:19:00 pm
Is that an actual bump map, or just a normal map adjusted to look bump mapped?

I think it's the former, but if it's the latter than it would be interesting to see how it looks in game...if the former, the bumps won't work in-game.

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Title: An experiment in bump mapping...
Post by: Fineus on May 23, 2001, 03:24:00 pm
No, this one makes use of 2 types of maps. The original textures. and a copy of the textures with increased contrast to achieve the bump mapping effect. It would only work if you balanced the two by altering just one texture, which might make the ships look bad.

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Title: An experiment in bump mapping...
Post by: Carl on May 24, 2001, 11:48:00 am
when i try bump mapping it sometimes looks kinda plastic-ish. it is better to use a brand new bump map then the original texture.
Title: An experiment in bump mapping...
Post by: phreak on May 24, 2001, 02:28:00 pm
  (http://members.nbci.com/nick9999/bump.png)  

oh yea and its about a .17 magnitude for the bump.

[This message has been edited by PhReAk (edited 05-24-2001).]
Title: An experiment in bump mapping...
Post by: Fineus on May 24, 2001, 02:51:00 pm
Nice! I think I may look into making maps for all the ships...

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Title: An experiment in bump mapping...
Post by: Bobboau on May 24, 2001, 11:02:00 pm
 (http://members.aol.com/Bobboau/bump.jpg)

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Title: An experiment in bump mapping...
Post by: Fineus on May 25, 2001, 12:52:00 am
That settles it, I'm doing the maps  (http://dynamic.gamespy.com/~freespace/ubb/noncgi/smile.gif)

In mine theres a little improvement, however Bobboau has definitely got a better way of doing it by the looks of things... how did you do that?

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Title: An experiment in bump mapping...
Post by: Setekh on May 25, 2001, 01:30:00 am
 
Quote
Originally posted by Thunder:
In mine theres a little improvement, however Bobboau has definitely got a better way of doing it by the looks of things... how did you do that?

He's a modeller, remember? Those cruisers are reflective as well(look at the turrets!), he did them in TS.