HOME | DD

tetsuogz — DOOM 3. Bump mapping

Published: 2004-08-23 00:51:46 +0000 UTC; Views: 2319; Favourites: 2; Downloads: 354
Redirect to original
Description The question came to mind.

What would Doom 3 look like with it's bumpmapping turned off?

I went into the game for a brief moment and loaded one of my savegames. A zombie soilder stepped up and promptly started shooting me at which point I shot him down. Upon the ground I took my flashlight to him and took a screenshot of his face with and without the bump mapping on.

Hence it is seen where the bump mapping starts and where the Texture mapping ends. Clearly these models where made solely for the purpose of being bump mapped as without it they appear plain looking even when compared to classic Half-life models.

What is bump mapping? It's the process of putting bumps onto an otherwise flat polygon surface. With this process you can give 3D characters very distinct facial and body features meanwhile reducing the number of polygons and texture maps needed to create the character. It also helps reduce stress on the processor since there are fewer polygons to process.

Bump mapping is a Video-acceleraton only feature that was introduced with the Geforce 3. To my knowledge it hasn't been used extensively except to make realistic water surfaces in many older games.
Related content
Comments: 4

archiveofregret [2008-04-27 23:15:09 +0000 UTC]

Bump maps kick ass. But CS:S hostages are the worst bump maps I've ever seen, and if you put them on Dr. Kleiner from HL2 he looks really cheesy. Source engine models dont really need bumps.

👍: 0 ⏩: 0

sketchii [2004-10-02 21:22:21 +0000 UTC]

woah, that's awesome. o_o

👍: 0 ⏩: 0

tetsuogz [2004-09-01 18:46:57 +0000 UTC]

Correction: Bump mapping isn't the process of literally applying bumps to a polygon surface but rather the illusion of it. My bro explained it to me. Apparently it bends the light in order to make it appear there are bumps there when there isn't. The creature may appear to have bumps when you look directly at it when you look directly upon it but when you look at it sideways you don't see the bump anymore.

It is indeed an effect that compliments the realtime lighting very well.

👍: 0 ⏩: 0

montex [2004-09-01 10:38:07 +0000 UTC]

O_o

👍: 0 ⏩: 0