[vtkusers] Scalars and diffuse lighting

[Ken Martin]

I am not completely following your issue. But .. if you are using VTK with
the OpenGL2 back end then the diffuse is based the actor's property when
scalars are not visible. Note that colors and intensity in the actor's
property cover a range of 0.0 to 1.0 not 0.0 to 255.0. If you can explain
your problem a bit more specifically, including what version of VTK you are
using and what rendering backend, the I might be able to help more.

Thanks
Ken


On Thu, Oct 13, 2016 at 9:28 AM, Zivi, Der <cardstudent at balgrist.ch> wrote:

> Hi David
>
> Sorry for digging out this ancient post, but I'm now having the same
> problem.
>
> More specifically, I don't mind that the diffuse coefficient is 1 when
> scalars are shown. But at some point the scalar visibility is reset to 0,
> but the diffues coefficient stays at 1. How can I switch back to using the
> diffuse coefficient set in the actor properties?
>
> Because the diffuse coefficient is only set to 1 once the active scalar is
> set, and there is no reset method...
>
> Frederik
>
>
>
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-- 
Ken Martin PhD
Chairman & CFO
Kitware Inc.
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