Tutorial - the making of "Lords of Arrakis" -- Part 2

Galleries Fractal Gifts

Ultra Fractal Tutorial - The Making of "Lords of Arrakis"

Part 2. Creating the "coloring" layer.

Pages in Part 2:
1. Preparation and assessment.
2. Create new layer.
3. Apply coloring.
4. Adjust formula.
5. Adjust location.
6. Final coloring adjustments.

Layers Chart: Click to view.
Tutorial Map: Click to view.

Page 3. Apply coloring.


Step 6. Assess current coloring.
	A.	Click on the Inside tab. Observe that since no coloring algorithm has been assigned ("None" in upper left corner) and no transfer function has been assigned, the region inside the fractal is filled with the solid color shown in the Solid Color parameter: in this case, black.
	B.	Click on the Outside tab. Observe that the region outside the fractal is colored by a coloring algorithm named Spiral, whose coloring instructions are modified by a transfer function named CubeRoot before being applied.
Step 7. Set outside coloring. My approach to coloring the image will be to swap the selection of: (1) which region will be foreground, or shapes, with (2) which region will be background, so that the outlines become, in effect, inlines. The former shapes will be the same, but instead of being colored, they will be black, with coloring surrounding them. Following this, I'll search through the fractal, zooming in and out, and sliding it around, for just the right color pattern.
	A.	Click on the Outside tab. Turn the coloring algorithm off by setting the Transfer Function to None. Observe that the color swatch in the Solid Color Fill is already black, which is what we want. This completes the first half of the swap. We have now set the outside region to black. Since the inside region is already black, the image will disappear, and the area in the Fractal Window will all be black. We will soon bring out the "swapped" image, though. Here is what the current screen should look like:
Step 8. Set inside coloring.
	A.	Click on the Inside tab. In the inside tab, click on the "Browse" icon. This will cause the Select Inside Coloring Algorithm dialog box to appear.
	B.	In the Select Inside Coloring Algorithm dialog box, click on the "Public" folder. Within the "Public" folder select the "dmj.ucl" Ultra Fractal coloring algorithm file, and, within this file, select the Lyapunov coloring algorithm. Click on Open. The image should now look like this: Notice that the previously colored shapes are now solid black shapes, and the previously black background is now colored in a pattern.
	C.	In the Inside tab, set the Transfer Function to "Cube" Set the Variable to Track to "real part of z". The image should now look like this: Notice that the previously colored shapes are now solid black shapes, and the previously black background is now colored in a pattern.

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	© 2005 Troy R. Bishop