Filter
These settings affect the density and spatial filters used during the second and third steps of the rendering process. The effect of adjusting these values is smoother lines and greater blurring.
Note that unlike most other fields in the program, the fields in this table do not reset the entire rendering process when changed. This makes it very convenient to experiment with these values because the result will be seen almost instantaneously. The responsiveness is even more pronounced when using the GPU.
Spatial filter width
The width of the spatial filter applied to the final image. Note that the final computed width of the filter that actually gets applied is usually larger than this.
Adjusting this value can help smooth out jagged lines. Values above 1.0 might make the image look too blurry.
Range: 0.1 – 10
Default: 1.0
Spatial filter type
The type of the spatial filter applied to the final image. Experimenting with these can provide interesting effects.
Default: Gaussian
DE filter min radius
The minimum filter radius to use when performing density filtering. Increasing this value will add additional blurring even in high density areas, so it can be thought of as a sort of anti-aliasing technique. However, larger values will result in too much blurring which is generally undesirable. This must always be less than or equal to the DE max radius.
Default: 0.00
DE filter max radius
The maximum filter radius to use when performing density filtering. Increasing this value will add additional blurring only to low density areas, which is generally desirable. This must always be greater than or equal to the DE min radius.
When using the GPU, if this value multiplied by the supersample is greater than 9, the performance of density filtering will drop to that of the CPU. This is because a filter size greater than 9 cannot fit into local shared memory.
Setting this to 0 disables density filtering. Double clicking will toggle between 0.00 and 9.00.
Range: 0.00 – 25.00
DE curve
The speed with which the density filter values decrease when moving away from the center pixel being filtered. This value will almost never need to be anything other than the default.
Range: 0.01 – 5.00
Default: 0.40