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Compendium Deluxe 2
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ColorCube.Doc
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ColorCube.itx : A space filling texture.
Type: Color, Reflect, Filter.
Overview:
=========
This Imagine 3.x texture creates a three-dimensional color cube that
surrounds your object. Using this texture on a cube results in half a
million colors flowing smoothly over the surface. Repeatable color,
reflect and filter mapping are supported.
At least a 68020 and an FPU are required. The integer version of Imagine is
not supported, sorry.
Usage:
======
The default parameters provide a three dimensional non-repeating
color-mapped space that contains all 16 million colors. The coloring is
based on the texture axis. Red runs along the X axis, green follows Y and
blue is mapped to Z. At 0,0,0 (based on the texture axis) you get black,
and at the end of the positive side is white. You must make sure that you
place the axis properly when not using repeat. Your object should be
completely enclosed within the positive side of the texture axis, just like
when applying a brush map. This texture is similar to the Rainbow.itx that
comes with Imagine 3.0 with the main difference being the ability to modify
the objects colors instead of replace them.
parameters:
===========
ColorBlend, ReflectionBlend, and TransparencyBlend.
---------------------------------------------------
These three values determine how strongly the texture is mixed with the
existing values of your objects surface. A 0.0 would leave the surface
untouched, a 0.5 would result in an even mix between the old and the new,
and a 1.0 (default for color) leaves nothing of the original attributes.
MaxRed, MaxGreen, and MaxBlue.
------------------------------
This is the color used at the far side of the texture axis. The default
is set to white. Lowering these values will darken the entire object,
raising them too much can wash it out. Try 300-350 for bright colors.
Setting any to -1 will turn off that color axis.
ColorRepeat, ReflectionRepeat, and TransparencyRepeat.
------------------------------------------------------
This turns on the repeat for each of the different mapping techniques.
Normally the texture is only applied inside the bounding box. This option
repeats the texture smoothly for infinity in all directions. Set to one
to enable repeat, any other value to disable it.
Notes:
======
A rotating cube standing on one edge can be a good example animation
for 24 bit boards, or ones like DCTV or the new HAM-8 modes.
In trace mode, transparency can give great shadows and lighting effects.
Try morphing an object out of camera view, using the filtered rays to light
your scene. Interesting.
Rotate the axis in one or more directions and apply it repeatedly to the
ground for a good effect.
***************************************************
Ian M. Smith
Fido-Usenet: Ian.Smith@f564.n2601.z1.fidonet.org
***************************************************