Kenny Hoff's real-time realistic lighting effects

1998 did Kenny Hoff some work for Disney and the result was published on his page. I made an archive and added makefiles for linux, mingw and Borland some minor changes was also done. You will find the documentation at Kenny's page so I will only gives some links and comments. Thanks to Kenny Hoff for releasing his work to the public and letting me distribute this archive.

links to material from Kenny Hoff

Kenny's page for the Disney work
Good presentation of Shadow Algorithms by Kenny Hoff
Presentation on Bounding Volume Hierarchies and Spatial Partitioning
His homepage

some comments

uses a lot of glPushAttrib and glPopAttrib and this slows things down
does not takes advantages of later extensions like multi texturing
the code is very clear but not the most efficient way to do things
perhaps more inspiration and starting point than an highly optimized up to date library
many functions and I have not tested them all yet
the shadow maps is not well tested and runs very slow
I can not load the vrml model
projected textures has problems with small angles

my changes to the original code

added polygon offsets in a number of places to get rid of some artifacts
fixed a bug in a call to glCopyTexImage2D
flipped the snapshot image so it became right
added a fullscreen option (SetGameModeScreen) to the viewer. In the original is no call to glutInit done but SetGameModeScreen calls it even for windowed mode.
Changed the initial window size from 800x800 to 400x400 in the samples
switched to a simpler model in the shadow volume sample
made the light cone more visible in the spotlight example
used the wavy background in some of the samples
probably some other stuff I have forgot about. :)

downloadable files

the archive with the modified library
I made a class for vertex arrays. A modified shadow volume example using my vertex array class and SetGameMode function is also included. You need to install the library before building it.

main