Whether to perform this combination. If disabled, the combination is not applied.

How to combine the processed source voxel with the current destination voxel to get the candidate for blending.

Adjustments to the source value prior to mixing into the current destination. This can save the need to pre-process volumes to get them into the correct range.

Source volume to apply. If the destination volume is scalar, the length of the source volume is used. If the destination volume is a vector and the source a scalar, it is extended by replicating the value.

If blank and no source volume is specified, an implicit zero volume will be used as the source. The Add parameter can then be used to set the value of the source, allowing the setup of constant-value operations and blends.

The source volume is scaled by this to get the source value. This is done prior to the addition or processing steps.

The scaled source volume has this added to get the source value. This is done prior to the processing step.

After scaling and adding to the source volume, the source value is finally processed with this operation. The result of this is then applied using the operation selected.

The final computed source value; after mixing with the current destination volume using the operation, is blended into the new destination volume. This is a linear interpolation using this scale factor, zero will leave the destination unchanged and one will replace it with the computed value. The final blend amount is clamped to 0-1.

An attribute to provide per-voxel blending amounts. Zero will leave the destination unchanged and one will replace with the computed value. However, this is scaled by the Blend parameter, and clamping is done after the scaling. So if the blend attribute isn’t in a 0-1 normalized range the Blend parameter can be used to scale it appropriately.

Scale the resulting value by this amount.

Thresholding allows a continuous attribute to be switched to an on/off values depending on if it crosses a threshold value.

If the voxel exceeds this threshold value, replace it with the maximum clamp value. If it is below or equal to it, replace with the minimum clamp value. For vector volumes, this is done per component.

Enable clamping of the final value by the minimum value.

The minimum value to clamp to (or threshold to).

Enable clamping of the final value by the maximum value.

The maximum value to clamp to (or threshold to).

If the destination volume doesn’t exist, try to create it by matching the first of the source attributes.

If the destination volume does not exist always create a scalar volume. This has the effect of making an implicit length computation for all source vector volumes.

Remove all the source volumes after processing, unless one of them is also the destination volume. Useful for cleaning up temporary volumes that were created to assist in computation.

If specified volumes other than the destination are missing, raise an error. If erroring is disabled; missing source volumes will cause that combination to be skipped as if it were disabled. Missing blend volumes will be treated as if the blend volume was 1.0 everywhere.