Image filter – Enables sub-pixel filtering. When this option is disabled, an internal 1x1 pixel box filter is used. Using image filters may slightly increase rendering times.
Size – Specifies the size of the image filter.
Type – Specifies the filter type: Area, Blend, VRayLancsozFilter and VRayBoxFilter1.
Adaptivity clamp – Specifies an intensity limit for the adaptive bucket and progressive samplers to avoid excessive sampling of overexposed areas. Lower values mean a lower limit and potentially noisy overexposed areas. Higher values produce more samples in overexposed areas.
Render mask – Enables the use of a render mask to determine which pixels of the image are calculated. The rest of the pixels are left intact.
None – A render mask is not used. Texture – Render mask is a texture. Black values in the map define pixels which are not rendered. Pixels with any other values are rendered. The texture should use the screen mapping type. Selected – Only pixels that belong to the currently selected object(s) are rendered. V-Ray still calculates the entire image, but only renders parts that belong to the selected object(s). This mode is useful if you want to isolate or re-render just some objects from the scene. Include/Exclude list – Same as Selected, but objects are selected by list. Layers – Renders only objects that belong to the currently selected layer. Object IDs – Renders only objects with specified Object IDs. Separate Object IDs with a comma (,). Clear previous render – Removes the previous frame for the VFB.
For more information on how to use the Render mask feature, see the Render Mask tutorial.
