[vtkusers] about vtkVolumeTextureMapper3D

[Amy Squillacote]

>
> 1. "This mappers currently supports:
> one component, or two or four non-independent
> components", but I don't know what does "component"
> mean here
>
>   

This is the number of values for each pixel in your image. If your image
has one component, it has one value per pixel, and is therefore a
grayscale image. If you have two components (or values) per pixel, then
you have a grayscale color value and an opacity value. If you have 4
non-independent components, then you have a color image where the first
three component specify the color using red, green, and blue values, and
the fourth component specifies an opacity value.

- Amy

-- 
Amy Squillacote
Kitware, Inc.
28 Corporate Drive
Clifton Park, NY 12065
Phone: (518) 371-3971 x106