1 - CREATING THE CUBE FROM PYRAMIDS
make a picture cube, which is a cube with a different picture
on each of its six faces, is not as simple as creating a cube
in Bryce and applying an image to each side. You can't apply
a separate image to the faces of a Bryce cube. This method
creates a cube out of pyramids and applies each image to a
separate pyramid using Object Top mapping.
First create a pyramid, it's important to use the one shown
ringed to in Figure 1. This pyramid is 20.48 units square
on the bottom and 20.48 units in height. More importantly,
its centre of rotation is already positioned so that when
you rotate a duplicate through 90 degrees, the base of the
rotated duplicate lines up with the base of the original.
2 - FINISHING UP THE CUBE
the pyramid (Ctrl D). Hold the shift key down and rotate the
duplicate 90 degrees around the X axis by dragging on the
rotation wheel. Now duplicate the new pyramid and rotate again
through 90 degrees around the X axis. Duplicate again and
rotate to finish up with four pyramids whose bases form four
sides of a cube.
Select the original pyramid, duplicate it and rotate through
90 degrees around the Z axis. Duplicate this one and rotate
it through 180 degrees around the Z axis. You now should have
six pyramids whose bases form the six sides of a cube as in
3 - MAPPING THE "CUBE"
the pictures to the cube faces.
Select one of the pyramids (choose one whose base appears
to the front of the cube so that you can see what's happening)
and click on M to enter the materials editor. Click on the
diffuse and ambient buttons in the A column of the colour
section. This will cause a random material to be loaded. Click
on the P button and Leonardo will appear. Click on the pinkish
button above the P button. The Picture Source editor will
appear. Click on the word Load above the rightmost of the
three images. Select your .bmp, .psd or .tif image in the
dialogue box. The image will be loaded. Select Object Top
as the mapping mode. Click on the checkmark.
You will see the image appear on the base of the pyramid.
It is important to note that the image as it appears on the
base will be flipped right to left or even upside down so
you will have to compensate for this in your image preparation
program. This happens because the image is actually applied
to the peak of the pyramid and what you see on the base is
as if you were looking at the image through the back of it.
Repeat for each of the pyramid bases. Render the finished
cube as in Figure 3.