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Poser - OFFICIAL F.A.Q (Last Updated: 2025 Jan 20 11:41 am)



Subject: Scanning Electron Microscopy shader?


PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 3:48 PM · edited Wed, 15 January 2025 at 11:13 PM

I've browsed the Bryce forum and saw that they had an electron microscopy shader. Is there one available for Poser 5?



compiler ( ) posted Sun, 26 September 2004 at 4:34 PM

What does this look like ?


PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 7:40 PM

file_130847.jpg

Its a lot more complicated that just a black and white image because of electron charging... like a black and white TV sort of...



PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 7:41 PM

file_130848.jpg



nomuse ( ) posted Sun, 26 September 2004 at 7:44 PM

It's a truly beautiful effect. I think I've seen a Maya or Max shader or two for it. I messed around for a while trying to do it in Carrara and had some luck using a ring-shaped light around the scene, plus aura effect.


PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 7:46 PM

file_130849.jpg

.



PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 7:47 PM

I know its been done in Studio Max, Bryce, and I think Carrara as well.



PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 7:51 PM

file_130850.jpg

.



PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 7:52 PM

file_130851.jpg

.



PapaBlueMarlin ( ) posted Sun, 26 September 2004 at 7:59 PM

Bryce: http://www.renderosity.com/messages.ez?ForumID=107&Form.ShowMessage=1260423 http://www.renderosity.com/messages.ez?ForumID=107&Form.ShowMessage=1302819 Max: http://www.renderosity.com/messages.ez?ForumID=2104&Form.ShowMessage=1291721 http://www.renderosity.com/viewed.ez?galleryid=425437



face_off ( ) posted Sun, 26 September 2004 at 8:40 PM

I'm not quite sure what you are asking here.....if the question is "if I have a poser model of a red blood cell, can I shade it to look like the above photo above", then the answer is "maybe". To me, the above image look like polys are shaded black if they face the camera, and white if they are parallel to the camera. So a simple edge_blend might do the trick. Experiment by plugging it into the ambient colour.

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nomuse ( ) posted Sun, 26 September 2004 at 10:28 PM

What I'm wondering is if a fake fresnel wouldn't do the trick better... don't believe that function is in P5, though.


ynsaen ( ) posted Sun, 26 September 2004 at 10:47 PM

The fresnel can be done in P5 -- but it's a bit tricky as you have to use some funky math shaders and displacement to create the lens. THere are some good shaders for this in the P5 forum at rdna -- look for gmadone's work. Really nice stuff. This could be done using edge blend and a high ambience with a clay or skin shader, a color ramp, and a picture. I'd play around, but it'll be at least a month before I'm free enough to do so, I'm afraid. :(

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)


face_off ( ) posted Sun, 26 September 2004 at 10:49 PM

Nomuse, my understanding is that the edge_blend is effectively a fresnel, with the point of reference being the camera (rather that say a light). You can achieve a fresnel effect from a light in P5, but it is very complex - my New Skin Shader gallery image does this.

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nomuse ( ) posted Sun, 26 September 2004 at 11:22 PM

Cool. Fresnel effects bring you a lot closer to realism on a lot of things (skin included). Of course I'm a die-hard Carrara Studio guy now. They gave me the first affordable GI and I haven't looked back yet. (But I'm still waiting for someone to take on sub-surface scattering diffusion).


ynsaen ( ) posted Mon, 27 September 2004 at 12:59 AM

nomuse -- it's a capability of the firefly render engine, but I haven't found access to it yet through poser. It's possible Stewer may have a clue. Tempest is pretty nifty at it.

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)


stewer ( ) posted Mon, 27 September 2004 at 1:36 AM · edited Mon, 27 September 2004 at 1:41 AM

file_130852.jpg

FWIW, here's one I did last year. Would need to search for the pz3 file. [edit]*slaps forehead* d'oh. I have this shader in my freestuff, get the "living shaders" package.

Message edited on: 09/27/2004 01:41


ynsaen ( ) posted Mon, 27 September 2004 at 1:42 AM

lol -- I knew you'd have gone here...

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)


raven ( ) posted Mon, 27 September 2004 at 3:16 PM · edited Mon, 27 September 2004 at 3:18 PM

file_130853.jpg

Here's a quick pic showing Stewer's material with the green colours changed to shades of grey. I'm sure with more tweeking you could get a better result.

Message edited on: 09/27/2004 15:18



PapaBlueMarlin ( ) posted Mon, 27 September 2004 at 6:09 PM

That's awesome! I'll have to try it and see if I can get the effect that I want :)



jade_nyc ( ) posted Tue, 28 September 2004 at 7:48 AM

Stewer is the man! Great material! gives me lots of ideas ;) lol


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