Hi Mikko, Try out osgdistortion example in 2.0 :
osgdistortion --dome cow.osg Robert. On 7/11/07, Mikko Vähäsöyrinki <[EMAIL PROTECTED]> wrote:
Hi, I work in the field of neuroscience and I'm currently building new piece of research equipment for the visual stimulation. In this system observer is placed in the center of a sphere and the image is projected to the inner surface from the top with custom optics. We use DLP projector to produce images. Configuration is following: system lens will be on the top (north pole) and the optics is looking at 600 pixel diameter circle of the DLP chip. Center pixel will go to the bottom (south pole) and rest will map linearly from there on. Our problem is how to generate images/movies on the projector so that they will be presented correctly on the spherical surface. We would like to show different kinds of patters (light flashes at various locations and moving bars), random checkerboard noise, movies etc. It seems to me that this requires sampling of virtual environments that are further on mapped correctly to the pixel arrays. We also need very high frame rates so another trick we use is to display monochromatic images using each of the RGB frames as new monochromatic frame. This would also need to be implemented to the program. The hardware is nearly finished and I'm trying to find someone to do the programming. This person would be an author in the publication that will be written about the system. We can also discuss other compensation options. Please contact me if you are interested in the project. I'm happy to provide further information. Best Regards, Mikko Academy Research Fellow Dr. Mikko Vähäsöyrinki, PhD University of Oulu Department of Physical Sciences Division of Biophysics, PO.BOX 3000 90014 Oulun yliopisto, Finland Phone: +358-8-553 1110 Mobile: +358-45-114 9188 _______________________________________________ osg-users mailing list osg-users@openscenegraph.net http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
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