Vortex

This effect generates a vortex by rendering a textured 3D rectangle. The texture is based on the nebula texture with the additional ability to 'swirl' the texture. Use the orientation and viewing distance controls to give the vortex a true 3D appearance.

An example Vortex dialog.

Controlling the Vortex

Drop Off Controls rate of falloff of the vortex to empty space. Larger values result in a faster falloff.
Intensity Controls coverage of vortex texture. Larger values result in more coverage.
Color Frequency Controls repetition of inner and outer color from the center of the region. Larger values result in more repetitions.
Smoothness Controls the 'smoothness' of the fractal noise used to control the shape of the vortex. Smaller values make the vortex more mottled.
Inner Color, Outer Color Controls the colors used in rendering the vortex. The inner color is used nearest the center of the vortex. This color is mixed with the outer color as a function of the distance from the vortex center.
Inner Radius The radius of the vortex center. This value is normalized from 0 to 1.
Swirl Frequency Controls the number of swirls around the vortex. Larger values result in more swirls.

General Controls

Preview | Reseed | Orientation | Viewing Distance

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