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1994-11-15
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CRUMBLER 2.0 Copyright (C) Carlo Moretti Sep 1994
==================================================
written by Carlo Moretti
e-mail: moretti@cobra.csr.unibo.it
or: moretti@zeus.csr.unibo.it
QUICKSTART
==========
A Quick User Guide
------------------
INTRO
=====
CRUMBLER is a SIRDS (Single Image Random Dots Stereogram) and SIS (Single
Image Stereogram) generator, able to render "TRUE-DEPTH" holusions.
Crumbler 1.x & 2.0 are totally BATCH oriented, so they run using an
extended command line.
SYNTAX
======
> CRUMBLER <input[.TGA]> <output[.TGA]> [+<options>]
Input and output are TARGA files; input file can be either compressed or
uncompressed, 256 gray-shade or 256 indexed coloured or 24 bit truecolor.
The output is ALWAYS truecolor 24 bit, it can be compressed or uncompressed.
PARAMETERS
==========
Symbol "+" activates the specified option; when CRUMBLER checks the command
line, prints "+<opt.>" for explicated options, while prints "-<opt.>" to
show other Default values.
Here are the options:
"+p<pattern[.TGA]>" tells the program to create a SIS and <pattern.TGA> is
the pattern file you want to superimpose to the Stereogram (it
can be either compressed, uncompressed, 256c, 256g, 24 bit)
"+b" is NOT compatible with "+p<>", neither with "+g". Tells to generate
BLACK & WHITE SIRDS (so it doesn't need a pattern file)
"+g" is NOT compatible with "+p<>", neither with "+b". Tells to generate
a GRAY-SHADE SIRDS.
"+dXXX" tells the input image depth-level. Means the way to read the colours:
each colour represent a "depth-level" in the output image.
Valid values are:
"+d256" : 256 gray-values (Default) (SUGGESTED)
"+d768" : 256(RED) + 256(GREEN) + 256(BLUE)
"+d4069": RED*16 + GREEN + BLUE/16 (from 3D programs)
"+d64k" : smoother images from 3D programs (SUGGESTED)
"+d16m" : top number of depth-levels
"+d256" is the easiest way to use CRUMBLER. The BRIGHTER pixels
becomes THE NEAREST to you in the output stereogram, while
the DARKER becomes the farther.
"+r" is the RESOLUTION in DPI. Default=72 DPI, it depends on your output
device. This is NOT compatible with "+w" option.
"+w" is the MAX distance between two repeated patterns. This option can
replace the "+r" one and it's NOT compatible with.
"+z" is the Depth of Field. Values greater than 1.0. "+z1.0" generates
the DEEPEST stereogram, while values greater than 10.0 generate
'flat' stereograms. Default = 2.0 for Wall-eye, 4.0 for Cross-eye.
"+INT" uses a classical INTEGER algorithm to generate SIS & SIRDS.
Use this option for "flat" stereograms, which don't need to appear
smoothed.
"+c" generates CROSS-EYED stereograms (WALL-EYED is by Default)
"+sXXX" cuts the stereogram into "XXX" slices and invert them.
"+o" overwrites existing output files.
"+RLE" writes output compressed.
QUICKSTART: Examples
====================
Let's check a command line and say what it does:
CRUMBLER in.tga out.tga +ppatt.tga +d256 +r60
creates a SIS by using "PATT.TGA" as pattern file, and consider a
gray-shade input image (IN.TGA), by producing a "true-depth" stereogram
(OUT.TGA) of 60 DPI.
CRUMBLER in out +b +int +RLE
creates a black & white SIRDS by using an INTEGER algorithm (non true-depth)
and saving "OUT.TGA" with RLE compression. Input file "IN.TGA" is considered
256 gray-shade, by Def.
CRUMBLER i o +g +s18 +w100
creates a gray-shade SIRDS by repeating a random pattern of max. 100 pixels
per raw, and cuts it into 18 inverted slices.
CRUMBLER i o +pp +c +o
overwrites "O.TGA" if already exists and creates a CROSS-EYED SIS.
CRUMBLER in ou +d64k +r100 +z1.5
creates a coloured SIRDS (resolution = 100 DPI) quite deep, by using an image
from a 3D program like 3D Studio.
CRUMBLER i o +pp +d64k +r80 +s32 +c +o +RLE
creates an 80 DPI cross-eyed SIS from a 3D image, cuts it in 32 slices,
reverse them and then overwrites "O.TGA" and writes it compressed.
INPUT IMAGES
============
===>
===> CHECK CRUMBLER.DOC TO SEE HOW TO CREATE 3D-IMAGES!
===>
===>
===> CHECK CRUMBLER.DOC TO SEE HOW TO CREATE INPUT-IMAGES TOO!
===>
Anyway, start drawing a simple WHITE shape (like a filled square or a
circle) on a BLACK background, then try changing the BRIGHTNESS (using
simple gray values is the easiest way, to use with "+d256" option) to see
changes in the depth of the planes.
Then try writing (BIG FONTS) with gray shades, then more complex
pictures.... In this way you can easily learn by experience.
ALWAYS check sample files to see how the input images should be.
PLEASE REGISTER!!
=================
Read REGISTER.DOC file to register CRUMBLER 2.0 and the upgrades!!!
- QCKSTART.DOC - - END -
Carlo Moretti.
internet: moretti@cobra.csr.unibo.it
or: moretti@zeus.csr.unibo.it
mail: Carlo Moretti
V. R.Medri 2050 Gattolino,
CAP 47020, Cesena (FO)
ITALY