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Author Topic: Bump/image maps  (Read 2278 times)
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DarkBeam
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Fragments of the fractal -like the tip of it


« on: December 27, 2011, 10:27:57 AM »

http://www.johnstonsarchive.net/spaceart/cylmaps.html

Woot, just found a bunch of them in this site and I will try them cheesy
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #1 on: December 27, 2011, 10:38:23 AM »

Result; Houston we have a bump! Landing now!!! shocked

Used a RPow3 and as pretransform a _MapTranslate  wink


* zzz.jpg (90.06 KB, 774x601 - viewed 359 times.)
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Sockratease
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« Reply #2 on: December 27, 2011, 11:17:32 AM »

a _MapTranslate  wink

MapTranslate??

How did I miss that one??

Well...

Time to go see what Lissa's Pictures do with that feature!!
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #3 on: December 27, 2011, 11:42:03 AM »

a _MapTranslate  wink

MapTranslate??

How did I miss that one??

Well...

Time to go see what Lissa's Pictures do with that feature!!

That is the problem! In fact a bump map is different from a normal image; every pixel's lightness must express the height of the bump map in that pixel, plus you need to provide the info in spherical coords, and it seems that it's impossible to match bump and color map for now sad

edit; try also those textures but too bad they are in rectangular coords. And the old problem bump/color persists

http://www.samuraisquirrel.com/Textures/Textures.html

Earth's bump map: http://en.pudn.com/downloads83/sourcecode/graph/detail319133_en.html
« Last Edit: December 27, 2011, 11:51:35 AM by DarkBeam » Logged

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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #4 on: December 27, 2011, 12:02:12 PM »

An example of female head mapping http://grico316.com/pages/Bionic_Chick.html

The result is so crappy shocked


* zzz.jpg (91.41 KB, 998x453 - viewed 431 times.)
« Last Edit: December 27, 2011, 12:06:49 PM by DarkBeam » Logged

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Sockratease
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« Reply #5 on: December 27, 2011, 12:47:07 PM »

An example of female head mapping http://grico316.com/pages/Bionic_Chick.html

The result is so crappy shocked

From the screenshot, it seems you used a texture map from a 3D Program, I have been playing with straight photos  (albeit some play with using the Threshold, Grayscale, and sketch filters in Pixelmator to enhance the bump quality).

I'll have some results soon - Lissa has been known to get upset if I post ...  unflattering images.  And when SHE gets upset...   hurt   fiery   hurt   run over   hurt   fiery   hurt
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Sockratease
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« Reply #6 on: December 27, 2011, 12:57:38 PM »

Just followed the link you provided.

Have you tried the provided bump map of the same face?  It should give better results than the diffuse map it seems you used  (bump map is further down on the same page).
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #7 on: December 27, 2011, 04:20:14 PM »

Yes of course, but the fact is that the bump map is studied for modelling a mesh already very close to a human face, not a sphere, that's why it does not work, anyway we are asking too much from that poor software that works so good! wink

Another try with that bump map; eeek!!!


* zzz.jpg (62.02 KB, 771x454 - viewed 355 times.)
« Last Edit: December 27, 2011, 04:28:22 PM by DarkBeam » Logged

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Sockratease
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« Reply #8 on: December 27, 2011, 04:55:31 PM »

eeek!!!  Indeed!

Now, to find a way to animate that sort of thing with the translation parameters...   devil
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Aexion
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« Reply #9 on: December 27, 2011, 05:13:53 PM »

Try skulls  grin
http://www.fractalforums.com/3d-fractal-generation/spherical-texture-fold/msg33982/

 
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #10 on: December 27, 2011, 05:40:15 PM »

Ah you evil boy! Abominio will defeat you! shocked

http://www.fractalforums.com/index.php?action=gallery;sa=view;id=9684

 grin
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DarkBeam
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Fragments of the fractal -like the tip of it


« Reply #11 on: December 28, 2011, 12:02:37 PM »

This site is the best I found, anyway Google can find a lot of stuff typing something + "bump" cheesy

http://textures.forrest.cz/index.php?spgmGal=maps&spgmPic=10
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