3D stereo rendering (3D glasses)?

vizfx · January 25, 2007, 1:23pm

Hi to all.
Do you know anything about support for 3D stereo rendering (3D glasses) in Blender Game Engine?
Best regards.
Mihai

Stu_Flowers · January 25, 2007, 2:26pm

Yeah, open the ‘game framing settings’ button in the render buttons window. Select ‘anaglyph.’ Hope that helps!

~~Stu_Flowers

redteam_spartan · January 25, 2007, 6:37pm

woah! thats crazy I never knew you can do that thanks!

MagicMyshu · January 25, 2007, 6:50pm

me neither woot

now where do i get some 3d glasses?

Arr_Matey · January 25, 2007, 8:54pm

This doesn’t work for me. Both of the images are exactly the same.

blendenzo · January 25, 2007, 10:44pm

Run a search on anaglyphic glasses, you should be able to find them pretty easily. They’re pretty cheap I think (at least the paper ones like I have). If you ever sold a game you made, you could package a pair of them with it and give the player the option of playing that way. Don’t expect to be thrilled, though. The red and blue lenses really detract from the graphics quality IMO.

Here, I dug this up:

http://www.rainbowsymphony.com/freestuff.html

They’ll give you a free pair of anaglyphic glasses if you send a SASE (Self Addressed Stamped Envelope).

Edit: I have noticed that on my system, using Anaglyphic Stereo causes a severe cut in framerate (dropped from 13 fps, which is average for my gfx card, to 0.445 fps).

James_XVI · January 26, 2007, 6:31am

Wicked! Omg! I, what, eh…bleh blah bluh… WII!!!

Arr_Matey · January 26, 2007, 8:24am

Please don’t spam us with useless posts, James. If you want to say something useful, go outside and shout it out at the top of your lungs! But don’t shout it here.

James_XVI · January 26, 2007, 8:34am

Roger that! It’s just that I’ve been looking for that feature for quite some time, and when finally I see it, it’s just pawnage!

PSK131 · January 26, 2007, 8:38am

There’s also side by side viewing method available in Blender and it works without any devices. Just cross your eyes so that left eye sees the right image and right eye sees the left image. This may take some practise and is not very convenient for gaming in long term These glasses may help: http://www.pokescope.com/pokescopeinfo.html

PSK131 · January 26, 2007, 8:48am

Regarding “real” 3d-glasses (shutter etc.) I think they would work in Blender games as well as in other games because Nvidia’s stereo driver supports OpenGL applications and doesn’t require application specific support. Obviously Nvidia’s graphics card is needed…

Stu_Flowers · January 26, 2007, 3:19pm

Woah! I didn’t know so many people didn’t know about that. I just happened to stumble across it one day…

Eku · January 26, 2007, 7:32pm

If your looking into anaglyph (red/blue), you’ll probably want the script in this thread to play with the distance between the blue and red images.
If you’re looking at shutter glasses, (page-flipping), they have their own adjustment, it comes with the driver. Note that (as I understand it…correct me if this is false info) you need to have a full window open to use shutter glasses, at least in windoze.
If you’re looking at polarized glasses, like you get in movie theaters these days, don’t, unless you have a monitor that can support it - most don’t.
Last comment: I’ve got shutter glasses, and they’re gathering dust. Blah, its cool the first time, but then it just kinda gets irritating. (100% personal opinion, of course. )

blendenzo · January 27, 2007, 11:55am

Eku: You don’t need a fancy script to change the eye separation. It’s built in to the Rasterizer module. You will need to use a Python controller to change it, though.

import Rasterizer

Rasterizer.setEyeSeparation(<i>insert a float value here</i>)

You are aware that, while the spelling “pawnage” is accepted, the standard spelling of the word is “pwnage” and that the appropriate pronounciation is “ownage”, correct? Here’s a useful link: http://en.wikipedia.org/wiki/Leet

vizfx · January 29, 2007, 1:47am

Hi again
The anaglyph method is the simplest one but I want to use Head-mounted displays for stereo rendering in my project.
Best regards.
Mihai

James_XVI · January 31, 2007, 12:02pm

Ok… I’ve tried, but I dont get it… I write that bit of code… add an empty, make an always sensor connected to python, and the script?

blendenzo · January 31, 2007, 12:40pm

Here you go James:

www.blendenzo.com/Files/EyeSeparationDemo.blend

James_XVI · January 31, 2007, 2:23pm

Thanks mate, but could you make me a pre-configureable one? Like a fixed value on start?

blendenzo · January 31, 2007, 3:34pm

Okay. Here it is. I just stuck a “Once” sensor on the camera and hooked it to a script called “Initialize.py”. Just change the number in the setEyeSeparation() function to get your desired result. I’ve got it set at .001 right now.

The file: www.blendenzo.com/Files/EyeSeparationPreConfig.blend

(BTW, for those who may not know, what I call a “Once” sensor is an Always sensor with Positive Pulse Mode turned off. It fires once at startup and never again, unless you use Python code to reactivate it. “Once” sensors are great for initializing things like global variables, custom settings, and TrackTo Actuators.)

EDIT: Just so you know, the Rasterizer module also includes the functions “getFocalLength()” and “setFocalLength()” for stereo mode.

James_XVI · February 1, 2007, 7:43am

Thanks mate For now I’ll stick with this…