Depending on how your bitmap looks like, you should mark the Color map (RGB->XYZ)
option or not. As mentioned in our on-line reference guide
:"If the 'Color map' checkbox if off, the map is evaluated in monochrome mode, the white color is considered as the Max rotation value, and the black color as Min. Turning on 'Color map', the RGB components of the image are used to define the scale for each axis, in this way: Red color-> X, Green color->Y, Blue color->Z. If you have three monochrome scale maps, one for axis, it is easy to combine them in a unique RGB map using a Composite map .."
In case of having troubles with it, please feel free to send us
a simplified scene to check it here.