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Section Content:

POV-Ray's crackle pattern - crackle form

The crackle pattern is one of POV-Ray's most useful and flexible patterns. Because of the additional parameters introduced in megapov I made this collection of sample pictures.

The pictures are rendered with POV-Ray 3.5 beta which does not produce the same results as in megapov 0.x with metrics different from 2.

The parameter introduced here is "form" used the following way:

pigment {
  crackle
  form VECTOR3D
  color_map {
    ...
  }
}

color_map used:

cr_cmap.jpg (10k)

form vector with components <X1X2X3>

The file size of the tables is about 80-100k.

A Version for easier navigation with javascript ist also available.

metric 2 (default)

X3 X1/X2 X1/X2 X1/X2 X1/X2
-1.2 negative / negative negative / positive positive / negative positive / positive
-0.9 negative / negative negative / positive positive / negative positive / positive
-0.6 negative / negative negative / positive positive / negative positive / positive
-0.3 negative / negative negative / positive positive / negative positive / positive
 0.0 negative / negative negative / positive positive / negative positive / positive
 0.3 negative / negative negative / positive positive / negative positive / positive
 0.6 negative / negative negative / positive positive / negative positive / positive
 0.9 negative / negative negative / positive positive / negative positive / positive
 1.2 negative / negative negative / positive positive / negative positive / positive

metric 1

X3 X1/X2 X1/X2 X1/X2 X1/X2
-1.2 negative / negative negative / positive positive / negative positive / positive
-0.9 negative / negative negative / positive positive / negative positive / positive
-0.6 negative / negative negative / positive positive / negative positive / positive
-0.3 negative / negative negative / positive positive / negative positive / positive
 0.0 negative / negative negative / positive positive / negative positive / positive
 0.3 negative / negative negative / positive positive / negative positive / positive
 0.6 negative / negative negative / positive positive / negative positive / positive
 0.9 negative / negative negative / positive positive / negative positive / positive
 1.2 negative / negative negative / positive positive / negative positive / positive