Maybe a different subject will inspire some help?
basically, I have video that was shot on a mirrored spherical ball.. this gives a circular image inside a rectangular video, I've figured out how to crop it so that I just get the square that surrounds the circle, but I cannot figure out how to correctly map this texture onto a sphere so that it is only on one hemisphere and so that the circle's circumference is on a "great circle" of the sphere? [ie it the circle is warped out so that it becomes a hemisphere].
I figure maybe I have to do some GEMgl stuff for this?
if anyone has done this, would you please share?
If not, any advice?
Thanks, -Alex
On 10/10/07, Alex x37v.alex@gmail.com wrote:
I have some panoramic video that I want to use to texture a hemisphere [or rather, the bottom half of a sphere].
I cannot simply texture the sphere with the video because the warping is not correct.. it seems that I need some sort of non-rectangular warping of the image before I texture the object, or a non-rectangular mapping of the texture onto the sphere.
Any ideas or advice? Does anyone else have experience working with panoramic video in Gem?
-Alex