> -----Oorspronkelijk bericht-----
> Van: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Namens Mark Heuymans
> Verzonden: dinsdag 8 januari 2008 16:08
> Aan: [email protected]
> Onderwerp: Re: VR pano's
>
> > Hello Realfriends,
> >
> > Does anybody have any experience in making VR environments
> with RS3D?
> > I mean those panorama's mapped to cubes, cylinders or
> spheres, like in
> > Quicktime VR.
> >
> > I remember someone on this list once described the whole
> proces with
> > some free-, downloadable software and a script for the
> camera in RS3D (V4?).
> > Can't reftrieve this information and perhaps it's all very obsolete.
> >
> > So, I guess my question is, can anyone recommend a program
> or a tool
> > to create VR worlds from 3D?
> >
> > Kind regards,
> >
> > Frank Bueters
> >
>
>
> Hi Frank,
>
> Two years ago I did some experiments in this area, I don't
> remember if I posted anything about this...
> It involved HDRShop (a great free program) and Blitzbasic
> (not free and outdated).
> The procedure was much more complicated than Matthias'
> approach, it didn't occur to me that RS can evaluate the map directly:
> - make a small chrome sphere in the scene (100% relection,
> color=0, nothing
> else)
> - use a camera that's looking at the sphere exactly from
> below, zoom in
> - this way, you get a fisheye projection. Only a small area
> behind the sphere is lost but that doesn't matter
> - use HDRshop to convert it to latlong projection (I forgot
> which options to choose), this will produce a map like the
> one in Matthias' procedure.
>
> Then I wrote a little ultra-simple viewer program in
> Blitzbasic that allowed rotation of the camera in the center
> of a sphere with this mapping. Pretty convincing but
> Blitzbasic had severe limitations in texture size, among
> other problems and I dropped the whole thing. It was fun, though.
>
> A totally different approach is to stitch together 8 or more
> camera views making up the 360 degree view together. There
> are many stitch programs but I could never find a good free
> one, maybe things have changed in the meantime.
> And then, how to view and navigate a scene? I never liked
> quicktime VR...
>
> If anyone is interested, I have some latlong mappings lying
> around produced this way, the Blitz viewer only works on my
> local machine (one of those limitations).
>
> -Mark
Hi Mark,
Deforming the image from a reflective sphere seems a less attractive way
than the
'totally different approach'. At least this multi picture solution is what
I'm trying to accomplish.
Hugin is free software that produces panorama's from multiple views. Source
images can be taken in several rows, mapping has various options too.
To me qtvr seems pretty OK. The cubic mapping gives excellent result and
most watchers will have the QT viewer already installed, which I see as an
advantage over Java viewers.
Navigation is done with hotspots (links to other camera standpoints) within
the VR world. Don't know yet how to incoporporate those.
Regards,
Frank Bueters
