Embossed (Julia, Mandelbrot, Newton)

The Embossed formulas are modifications of the classic 

Mandelbrot

, 

Julia

, and 

Newton

 fractals that create 3D bevel effects with contour 

lines.

They should be combined with the 

Emboss

 coloring algorithm. This 

coloring algorithm correctly translates the results from the Embossed 

fractal formulas to colors in the gradient.

For best results, use a black to white 

gradient

 such as Emboss in Standard.ugr. This will create a 

grayscale image with shaded contour lines. You can then combine this with other 

layers

 to add colors 

while retaining the 3D effect. For the 

merge mode

 of the layer with the Embossed formula, try Soft 

Light or Hard Light.

The formulas provide the following parameters for the 3D effects:

Specifies what kind of information from the fractal calculations is used to 

create the embossing effect. This changes the shape and place of the 

Emboss Type

contour lines.

This is the angle of the apparent light source, in degrees. The default value 0 

corresponds to light from above. Positive values rotate the light source in 

Light Angle

clockwise direction.

Specifies the relative size of the contour lines. When zooming in, the size in 

Contour Size

pixels of the contour lines appears to stay the same.

The other parameters are described in the topics for the regular (non Embossed) formulas.

Note: when 

rendering

 embossed fractals, use non adaptive 

anti aliasing

 to ensure that the contour 

lines are anti aliased correctly, and make sure the Force Linear drawing method option is checked.

See Also

Slope (Julia, Mandelbrot, Newton)

Standard formulas

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