[vtkusers] add a vertex attrib

[youpie]

Hi,

I want to know if it is possible to add a attrib (like temperature) for each
vertex. And how to access it in a shader ?

And, I have another question.
I process normal and access it in the shader with gl_normal. But i want to
know if the space in the shader are diffrent from the space where I declare
normal.

Thanks in advance for answers


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