IMPORTANT REMARKS about OOPOV written by Gabor Marton Department of Process Control, Technical University of Budapest Budapest, Muegyetem rkp. 9/R., H-1111 Hungary marton@seeger.fsz.bme.hu 1. The executable 'oopov' can be generated by 'make'. In case when GNU C++ compiler ('g++') is not present at the site, the macro CC in the 'makefile' should be changed properly. The command line option '-L/usr/local/lib' in the linking command should probably also be changed. 2. Starting 'oopov' without any command line option prints out the following: usage: oopov [SWITCHes] {FILENAME | -r #} where SWITCH can be -a v :accelerate via Voronoi-diagram -a b :brute-force intersection (default) -o FILENAME :name of output file -r # :creates # number of random objects (also writes them into random.pov) -r -1 :reads objects from random.pov -v :verbose printout -x # :horizontal resolution of image -y # :vertical resolution of image # is an integer A good trial is typing in first 'oopov -r 200 -a v', which generates 200 random spheres and renders them using the Voronoi-diagram acceleration technique, then typing in 'oopov -r -1', which renders the same spheres by the brute-force method, and comparing the running times. 3. The program 'oopov' is a framework for an object oriented implementation of the widely known ray tracer POV-Ray. Now it can render spheres only (although the parser recognizes CSG objects and also builds the corresponding object structure, the intersection calculation is not implemented for CSG). It also recognizes a few textures (pigment{solid},pigment{checker}). 4. The structure of the image file is as simple as possible (similar to that of Heckbert's minimal ray tracer): +-------------+-------------+ | (int) XSIZE | (int) YSIZE | +-------------+------+------+-------------+--------------------+ | (unsigned char) R1 | (unsigned char) G1 | (unsigned char) B1 | +--------------------+--------------------+--------------------+ | (unsigned char) R2 | (unsigned char) G2 | (unsigned char) B2 | +--------------------+--------------------+--------------------+ . . . +--------------------+--------------------+--------------------+ | (unsigned char) Rn | (unsigned char) Gn | (unsigned char) Bn | +--------------------+--------------------+--------------------+ where n = XSIZE*YSIZE 5. The image viewer 'show' can be generated by 'make -f show.m', although it can be used only if Starbase is installed on the (HP) workstation. Probably the paths should also be modified in 'show.m'.