Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Real-time High-Quality Rendering of Non-Rotating Black Holes   We propose a real-time method to render high-quality images of a non-rotating
black hole with an accretion disc and background stars. Our method is based on
beam tracing, but uses precomputed tables to find the intersections of each
curved light beam with the scene in constant time per pixel. It also uses a
specific texture filtering scheme to integrate the contribution of the light
sources to each beam. Our method is simple to implement and achieves high frame
rates.

33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat