Adaptive oversampling performs oversampling only near aliased pixels.

The number of shot primary rays will depend on the color difference of the neighbouring pixels.

Aliasing effects of the image will be erased more quickly than with a standard accumulation process.

For better results, adaptive oversampling can be combined with accumulation.

This feature is enabled via the SoPreferences SoPreferences SoPreferences DIRECTVIZ_ADAPTIVE_OVERSAMPLING parameter or SoDirectVizManager SoDirectVizManager SoDirectVizManager adaptiveOversampling field.