IKONAS DEMO TAPE

recorded by Paul Heckbert
New York Institute of Technology Computer Graphics Lab
26 June 1985

19 minute videotape, taped in real time.
No sound.

Contents (timecode in minutes:seconds)

 0:30  title
 0:35  redisplay of rectangle sequences
 1:20  2-D line drawings
 3:00  dekink (reduce aliasing by post-process selective blending)
 3:20  seed fill
 4:10  colormap animation
 4:50  Pascal's triangle modulo n, prime sieve
 5:40  bouncing balls
 5:50  polygon renderer "ikpoly"
	(vax does file I/O, lighting, transformation, clipping;
	ikonas does scan conversion, Gouraud shading, texture mapping, z-buffer)
 6:50  quadric renderer "iksoid" drawing flying saucer
	(ikonas does lighting, scan conversion, z-buffer; vax does rest)
 8:45  image processing: quarter, reflect, blur
 9:05  slide show (images pre-loaded, just switching video)
 9:25  bilinear Coons patch image warp
10:10  twisting Lena's face
10:50  recursive image rotate
11:35  image pixel shuffle
11:45  making a mipmap
11:55  edge preserving smoother filter
12:00  Gaussian blur - 10 to 60x faster than optimized VAX version!
	(uses MA1024, 6 passes: rx ry gx gy bx by)
12:25  iksoid robot
13:00  spinning wireframes
14:00  spinning molecules
	(uses XBS and triple-buffering: display/clear/draw)
15:00  phallic worms
16:00  filled, spinning wireframes (uses XBS with parity fill option)
17:40  transforming polyhedra
	(uses, as I recall, GM memory to fill horizontal spans.
	we achieved 30HZ redisplay or close to it)
19:00  tree animation playback (by video switching)
19:10  end

Most of videotape was made, without video edits, with this configuration:
    VAX 11/780
    Ikonas with:
	 1 XBS - crossbar switch
	12 DR256 - standard graphics memory
	    (12 megabytes total, enough for a 2048x2048x24-bit image!
	     it made us weak in the knees!)
	 2 MCM - microcode memory
	 2 SR8 - scratchpad memory
	 1 MA1024 - multiplier/accumulator board
	 also IF/IK, FBC, LUVO, BPS, but no MPC
    Ikonas cost: $122,000

Software
    Microcode written by Paul Heckbert, Mike Chou, Duane Palyka, mostly,
    using Gary Bishop's gia2 compiler, and ria assembler.