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Subject: Rendering stereoscopic 3d to be viewed (in print) with 3D glasses


Nate ( ) posted Fri, 18 February 2005 at 9:16 PM · edited Tue, 24 December 2024 at 10:27 PM

A publisher I work with wants me to make 3D renderings for print that the reader would view through those red/green glasses to see the images actually jump off the page.

Didn't even know where to start searching for this... does anyone have a clue where to look, and if this can be accomplished using Carrara? It may just be altering the regular rendered image, but I think it would involve at least two views of the subject to get the result.

What is this type of imagery actually called?

thanks for any help.


On-line portfolio / Making figurines in China / Gallery  / Video Demos


Rokol ( ) posted Sat, 19 February 2005 at 1:44 AM

Attached Link: http://http://www.stereophotoworld.com/default.asp

file_187664.png

Here is a site you may find helpful. There was a fab link to a tutorial - 3D stereo Bryce, sadly that link is now gone. I have done a few of these as you can see above.


Rokol ( ) posted Sat, 19 February 2005 at 1:49 AM

The link is not working. Try the address alone. Should have said that you only need one rendering & then you split the RGB channels in Photoshop. You may find some tuts elsewhere. I sadly neglected to print off a copy of the tut I used, so if you do come accross something pls post a link to me. Good luck


falconperigot ( ) posted Sat, 19 February 2005 at 2:29 AM

Attached Link: http://www.daz3d.com/support/tutorial/index.php?id=1212

I've not tried it but I think you may be able to do this using some free software called StereoPhoto Maker: http://stereo.jpn.org/eng/stphmkr/index.html It supports a number of different formats but has support for anaglyphs (which is what you want). The DAZ Studio tutorial may give you enough info for doing it in Carrara. HTH, Mark


falconperigot ( ) posted Sat, 19 February 2005 at 2:38 AM

Addendum: Although shifting the channels in Photoshop as Rokol suggests will work it will produce a poor result if you have any objects in the background. For a satisfactory result you need to move the camera angle slightly and then combine two pictures as in the DAZ tutorial. As you'll realize, this properly simulates binocular vision.


Rokol ( ) posted Sat, 19 February 2005 at 3:04 AM

Thanks for the link falconperigot, will have to dig out my 3D glasses again. Rokol.


falconperigot ( ) posted Sat, 19 February 2005 at 5:38 AM

file_187665.png

Well, I've tried this and it works well. All I did was set up the scene with a 'Point At' modifier for the camera pointing at a Target Helper Object which I positioned in the centre of the scene (the 'focus' of the camera). Then I switched to the end of the timeline and moved the camera a little. Rendered out two 'current frame' images from the start and finish positions and put them together in StereoPhoto Maker. Using the 'Point At' modifier and moving the camera in Top view means you don't have to worry about lining up your images. If you find you've moved the camera too far just render an earlier frame.


sailor_ed ( ) posted Sat, 19 February 2005 at 7:02 AM · edited Sat, 19 February 2005 at 7:13 AM

Attached Link: http://www.pokescope.com/

Nice work, falcon! Stereo photograpy is coming back with the advent of the digital camera. It is VERY easy to do with Carrara or any other rendering program and it is amazing to see one's work in true 3 dimension form. I have always been surprised it isn't done more often. Not for those 24 hour renders though :-) I use some software called PokeScope available at this link. It does the red/green image from two angularly separated images. Easy enough to do in any 3d software. They also sell very nice relatively inexpensive viewing glasses for separated pair viewing which gives you a nicer color.

Message edited on: 02/19/2005 07:13


Nate ( ) posted Sat, 19 February 2005 at 9:20 AM

You dudes are absolutely awesome!!! Thanks a million for all the info... it will take me a while to digest all of this and figure out how I can use it for my projects. Rdnderosity rocks! Again... thank you


On-line portfolio / Making figurines in China / Gallery  / Video Demos


Nate ( ) posted Sun, 20 February 2005 at 12:01 PM

file_187667.png

Well... I gave it a try and it seems like it's gonna work. Of course I have a ways to go to get it all figured out. Thanks to all for pointing the way


On-line portfolio / Making figurines in China / Gallery  / Video Demos


falconperigot ( ) posted Sun, 20 February 2005 at 12:37 PM

Attached Link: RainbowSymphony

That looks great! (I have some 3D glasses from the Rustboybook - supplied by Rainbow Symphony. The link may be useful)


ShawnDriscoll ( ) posted Sun, 20 February 2005 at 3:14 PM

Me too. The pix are looking good.

www.youtube.com/user/ShawnDriscollCG


Animoottori ( ) posted Mon, 21 February 2005 at 5:46 AM

I've once done some testing with 3D-apps and red/green 3D-effects. Unfortunately I haven't got a clue how to create fullcoloured images but the basic idea is that two images, representing the same scene from shlightly different angles, are combined in a way that one can't be seen when viewed through a red lens and the other through a green lens. In Carrara I'd create a group of two adjacent cameras, that can be moved closer and farther away from each other, and a target helper object.These three are parented by another helper object that is located between the cameras and is also set to point at the target helper object.This way it should be easiest to control the placement of the cameras and their target. I suppose that to get the best result the cameras should be equally far from the parenting helper object between them. The further the cameras are from from each other the stronger the 3D-effect is. In some point however the effect gets too strong and it is lost. This point varies a little to the viewer though. Another way to control the strength of the effect is to move the target point further away and closer to the cameras. I presume that the best result can be obtained by setting the target point a little closer than the furthest visible point on an object in the scene but I'd recommend that you test with this rather than take it for granted. The closer the point is to the cameras the more eyes cross along distance beyond the target point. Propably setting the target point further than anything else in the scene would be a logical choise but it might enhance the effect if you brought it a bit closer than that. This way to closest point in the scene don't have to be quit so far from each other in different images. Please, inform me on this one if someone tests it. I did the combining of the images in Photoshop. One B&W-image was coloured red and the other green. Then the different layers were treated so that one looked black when viewed through the red lens and the other through the green lens which of course depends also on the tones of the red and green. Finally the top layer was set to blend the lower level so that they were both visible. I cannot remember the correct blend mode nor if I did reduce both layers' opacity. I think the blend mode was either multiply or screen but I'm not sure on this one either. -HK


Nate ( ) posted Mon, 21 February 2005 at 9:18 AM

file_187668.png

I think one factor in the works with this stuff is relative to the individual who is looking at it... That is "eye dominance"

Most people seem to have a dominant eye... either right or left and it seems to me to be apparent in viewing these images to me when I turn my head slightly one way or the other. Closing either eye does not work at all - (of course you lose any 3D perspective when you close an eye).

Anyone else notice this?

I also think the crappy 3d glasses I have (copped from a dvd movie I bought) don't help, or the fact that I wear glasses. I ordered a pair of professional clip-on 3d anaglyph glasses... hope that will improve things.

I have seen some outstanding examples from companies who do this for a business. Of course, they are not telling how they do it.

I'm still looking for their secrets.

thanks, all


On-line portfolio / Making figurines in China / Gallery  / Video Demos


falconperigot ( ) posted Mon, 21 February 2005 at 11:27 AM

You may be right. That image looks good to me though and I wear glasses too. The front sphere and the cylinder really jump out. One of the drawbacks on this type of image is the overall loss of color. It's less with a monitor than a printed image but it's still there. Personally I think the stereoscopic viewers that have two separated images work best. I had one as a kid which had little slides. You held it up to the light and then clicked a button to get the slides to move on. I had one of dinosaurs fighting on a cliff top. At aged five I thought it was brilliant! :)


Nate ( ) posted Mon, 21 February 2005 at 12:19 PM · edited Mon, 21 February 2005 at 12:25 PM

Ahh.... yes! The incredible "View-Master" - wonderful device... I think they are still made. Will have to do some surfing. However, I'm looking for ways that my publisher can produce - in print and on the internet. Thanks for the kind comments. Guess I am spoiled by memories of the short-lived surge in 3d movies in the theaters in the mid-50's... Creature from the Black Lagoon, House of Wax, Fort Ti(conderoga?)... scary as all getout and those arrows and stuff came right at you out of the screen in the theater... old farthood has its advantages. What goes round comes around or back or something... but the first impressions are the best ones. I've learned a lot in the past couple of days, thanks to a great start in this thread and some persistent web surfing.

Message edited on: 02/21/2005 12:25


On-line portfolio / Making figurines in China / Gallery  / Video Demos


sailor_ed ( ) posted Mon, 21 February 2005 at 3:01 PM

Falcon- take a look at the link I posted previously..they offer a viewer that allows you to view stereo images pairs of almost any size on your computer or elsewhere. Additionally there are 3D plugins for browsers that make viewing easier for visitors. Try: http://www.vrex.com/depthcharge/


falconperigot ( ) posted Tue, 22 February 2005 at 2:30 AM

Thanks Ed, I'll take another look at that interesting link.


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