Hi all.

I'm quite new to rtrt, though I've been in the list for some months
now. Anyway, I think I should introduce myself a bit, since it's my
first post.
My name is Oscar Peñas. I'm a computer science student, and I have
some demoscene background, so I prefer the scener point of view of
rtrt, though I don't discard other approaches.

I was messing around with some ideas lately about the possibility of
implementing a raytracer using the acceleration of modern cards, like
for example letting opengl do the zbuffer stuff to get a preview of
which objects are more likely to be intersected by primary rays.
I am willing to know your thoughts to this respect. Do you think it's
possible? What are the possibilities?

Btw, say I want to use opengl's depth buffer. Is there any way of
accessing the depth buffer memory space to manipulate its values
directly?

See ya.