For these rendering methods a new API will be added for controlling the coefficient of volumetric/surfacic amount. This coefficient does not have any meaning for other volume mappers. We don’t want to add all methods because :
- this would add yet another API to the vtkVolumeMapper class that is not supported by all of its subclass
- also the volumetric/surfacic parameter does not have the exact same meaning in all methods so the user would need to tweak it according to the chosen method.
We think that it’s not worth it to overwhelme the user with a lot of controls and complicated parameters, and we want to keep it as simple as possible.