Brushwave Settings
The following settings can be used to manipulate the brush strokes.
Global settings
Render particles only
Normally, the brush strokes are drawn directly over the Lightwave rendering. If you want to see only the particles, you can change that behavior here.
Per object settings
Brush image
You can load any image format that is supported by LightWave; obviously, it should support an alpha channel, so a PNG-file would be a good choice. If you do not specify a file, a default brush image will be used.
Particle size
The meaning of this setting should be simple to grasp. The higher the value, the bigger the particle, with “1.0” meaning: it fills the complete frame.
values (left to right): 0.01, 0.02, 0.03
Particle Density:
A high density results in tightly packed brush strokes. The total number of strokes, however, is also depending on the particle size.
values (left to right): 5, 15, 25
Color variation:
The color of each stroke is varied slightly to add to the painterly effect.
values (left to right): 0, 2.5, 10, 25
Particle Alignment
If particle alignment is activated, the strokes are rotated tangential to the objects surface. Otherwise, they are always normally aligned to the camera.
left image: alignment off; right image: alignment on
Color displacement:
This parameter is not that easy to understand – it's mainly useful to reduce flickering in animations in high contrast areas. Color displacement means that a particle is moved from or to the camera, depending on its brightness multiplied by the color displacement setting.
values (left to right): 0, -5, +5
If you look carefully at the edges (you might have to open the image in full size), you see that the particles are sorted in different ways; in one image, the darker particles are in the front, in another image, the lighter ones are in the front.
