Volume indirect samples – This samples are responsible for quality on the surfaces that are covered with indirect lighting. SSS samples – sub-surface scattering are often used for materials such as skin, wax, milk … By increasing this samples, you will reduce noise on light that penetrates through the SSS material. Very often the sections where transmission samples are applied, are require more of rendering time than diffuse or specular surfaces. Values larger than 6 should provide high quality transmissions. If noise persist, than is most likely the case that lack of specular samples are producing noise. If needed you can “debug” the noise appearance by setting transition samples to 0. Higher values will reduce noise in the transmission. Transmission samples – are responsible for quality of surfaces that transmit the light, like glass. Values higher than 4 will render higher quality reflections. Specular samples – by increasing this number, you will reduce noise that occurs on reflective surfaces. Sample value of 6 will render better image quality. Higher number will generate higher image quality, or less noise to diffusion color. If it is set to 0, only direct lighting will be visible, while if you increase samples number, more diffuse color that are product of global illumination. All calculations are displayed above the sliders.ĭiffuse samples – represent number of global illuminations rays that are involved in forming of diffusion color. For higher quality images larger values are required (8 – 16).Ĭamera samples is the most important value because it multiplies all other sample settings.įor example it multiplies diffuse samples as: 8*8+6*6=2304. Value of 4 can be represented as square value for single pixes, 4×4=16 rays per pixes, with can be considered as a value needed to gain medium quality image. Camer (AA) – Higher number of samples will result the better anti-aliasing effect.

Arnold render