[vtkusers] Re: directly specifying RGB values for polydata?

[Goodwin Lawlor]

Hi Melissa,

You have to use a four component (RGBA) vtkUnsignedCharArray for the array
values to be used as colours, ie, not mapped through a LUT. 0 <= RGBA[i] <=
255

hth

Goodwin

"Melissa Suter" <suterm at dpi.radiology.uiowa.edu> wrote in message
news:4241E7F3.2040605 at dpi.radiology.uiowa.edu...
> I know this question has been asked before, but I haven't been able to
> find any answers.  I have 3D polydata that I want to add color to.  I
> don't want to do this by indexing or by texture maping, but instead want
> to be able to directly specify point RGB values.  Is this possible in vtk?
>
> Any help will be greatly appreciated.  Thanks in advance,
> Melissa
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