CloudsVortexIn the S_Clouds Plugin.Generates a procedural noise texture twisting into a vortex. The Vortex Speed parameter causes the amount of vortex rotation to automatically animate over time. Inputs:
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Parameters:
-
Load Preset:
Push-button
.
Brings up the Preset Browser to browse all available presets for this effect.
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Save Preset:
Push-button
.
Brings up the Preset Save dialog to save a preset for this effect.
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Frequency:
Default:
2,
Range:
0.01 or greater.
The spatial frequency of the texture. Increase to zoom out, decrease to zoom in.
-
Frequency Rel X:
Default:
1,
Range:
0.01 or greater.
The relative horizontal frequency of the texture. Increase to stretch it vertically or decrease to stretch it horizontally.
-
Octaves:
Integer, Default:
6,
Range:
1 to 10.
The number of summed layers of noise. Each octave is twice the frequency and half the amplitude of the previous. A single octave gives a smooth texture. Adding octaves makes the result approach a fractal (1/f) noise texture.
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Seed:
Default:
0.234,
Range:
0 or greater.
Used to initialize the random number generator. The actual seed value is not significant, but different seeds give different results and the same value should give a repeatable result.
-
Center:
X & Y, Default:
[0 0],
Range:
any.
The center of the vortex, in screen coordinates relative to the center of the frame. This parameter can be adjusted using the Center Widget.
-
Vortex Start:
Default:
72,
Range:
any.
The amount of vortex rotation, in approximate counter-clockwise degrees at the edge of the frame.
-
Vortex Speed:
Default:
30,
Range:
any.
The speed of the vortex rotation, in approximate degrees per second at the edge of the frame. If non-zero, the vortexing is automatically animated at this rate.
-
Inner Radius:
Default:
0.04,
Range:
0 or greater.
The radius from the center at which the vortexing is phased in. This can be used to reduce excessive distortion and aliasing at the very center of the vortex.
-
Angle Offset:
Default:
0,
Range:
any.
If non-zero, a rotation is combined with the vortex. Make negative to rotate the inner and outer regions in opposite directions.
-
Z Dist:
Default:
1,
Range:
any.
Scales the 'distance' of the image. Values greater than 1.0 move it farther away and make it smaller. Values less then 1.0 move the image closer and enlarge it.
-
Latitude:
Default:
30,
Range:
any.
Positive latitude tilts the image down and negative tilts it up. Keep latitude in the range of around -35 to 35 degrees to avoid aliasing towards the horizon.
-
Brightness1:
Default:
1,
Range:
0 or greater,
Shared
.
Scales the brightness of Color1. Increase for more contrast.
-
Color1:
Default rgb:
[1 1 1],
Shared
.
The color of the 'brighter' parts of the texture. The colors of the result are determined by an interpolation between Color0 and Color1.
-
Color0:
Default rgb:
[0 0 0],
Shared
.
The color of the 'darker' parts of the texture.
-
Offset0:
Default:
0,
Range:
any,
Shared
.
Adds this value to color0. Decrease to a negative value for more contrast.
Params2:
-
Boiling Mode:
Check-box, Default:
off.
When enabled, the clouds will boil, or evolve, over time. This mode takes slightly more computation but usually looks better.
-
Boil Details:
Default:
0.55,
Range:
0 to 1.
Increases or decreases the amount of fine detail in the clouds. Decrease to get a smoother look, increase to get a more high-frequency, noisy look. Only used when Boiling Mode is enabled.
-
Boil Speed:
Default:
1,
Range:
any.
Sets the speed of the cloud boiling. Zero gives no boiling at all. Only used when Boiling Mode is enabled.
Params3:
-
Mocha:
Default:
0,
Range:
0 or greater,
Shared
.
Brings up the Mocha window for tracking footage and generating masks.
-
Blur Mocha:
Default:
0,
Range:
0 or greater,
Shared
.
Blurs the Mocha Mask by this amount before using. This can be used to soften the edges or quantization artifacts of the mask, and smooth out the time displacements.
-
Mocha Opacity:
Default:
1,
Range:
0 to 1,
Shared
.
Controls the strength of the Mocha mask. Lower values reduce the intensity of the effect.
-
Invert Mocha:
Check-box, Default:
off,
Shared
.
If enabled, the black and white of the Mocha Mask are inverted before applying the effect.
-
Show Mocha Only:
Check-box, Default:
off,
Shared
.
Bypass the effect and show the Mocha Mask itself.
-
Bypass Mocha:
Check-box, Default:
off,
Shared
.
Ignore the Mocha Mask and apply the effect to the entire source clip.
See Also:
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Clouds
CloudsPerspective
CloudsMultColor
CloudsColorSmooth
CloudsPsyko
CloudsVortexComp
WarpVortex
Sapphire Plug-ins Introduction