User Guide

50 REFERENCE
PYROCLUSTER
Use Color
With Use Color enabled, the
colors used in the fractal
effects can be controlled
directly from the Noise page,
overriding the same settings
on the Globals page.
If you enable this option the color for the effect is taken from the gradient here on
the Noise page rather than from the one on the Globals page.
This gradient controls the coloring of the puff based on the result of the noise render
engine, enabling you to make effects based on the noise itself. When Use Color is
enabled, the left edge of the color gradient is used for all noise values equal to zero
(i.e. transparent) while the right edge of the color gradient is used for all noise values
equal to one (i.e. opaque).
The Noise gradient differs from the Globals gradient in the use of the Edit Alpha option.
Here, the alpha gradient does NOT control the transparency of the noise; rather, it
controls which color is taken to draw the puff. Plain white in the gradient means that
the Noise color only is used, plain black means use the Globals color only — so if the
alpha gradient is completely black and the Use Color option is enabled, this would
produce the same result as if the Use Color option were disabled.
So Use Color enabled, the Noise Color gradient controls the look of the puff — just
the puff; all other color information (Gradient Mode, for example) is taken from the
Globals Color settings.
Static Pos
This option changes the way in which the effect is calculated. Usually the effect eats
into the local space of the individual volumetric pixel (called a ‘voxel’) with the result
that each voxel creates its own puff. However, in some cases you may want to x the
position of the effect and move the puffs through the noise. If this option is enabled,
the effect for all voxels is controlled by screen coordinates.