2008

Pixel radius of 10
Left: 10 rays per sample
Middle: 50 rays per sample
Right: 150 rays per sample
Increasing the number of rays per sample can greatly increase rendering time.
The images on the right can take nearly six times as long to render as the
images on the left. Increasing the filter radius also increases render time, but
not as dramatically.
Clamp Values (cd/m^2) This control is expressed as a luminance value.
Luminance (candelas per meter squared) represents how brightly you perceive
a material. Clamp Value sets an upper limit on the luminance that will be
considered in the Regathering stage. Use it to avoid the appearance of bright
spots.
Default Scanline Renderer Rollout | 6023