It's important to note that we're not, as far as I'm aware, considering anything lighting or ray-tracing-like yet.  I'm not sure that Phong shading actually makes sense without doing that.  The Gouraud shading we're in the process of implementing uses only explicit colors specified in the plot, not any sort of light-source-calculated values.

Add perhaps more importantly, Gouraud is implemented in a number of vector formats, including PDF and PS (though matplotlib doesn't have support for that yet, that's coming...)

Mike

On 08/26/2009 07:06 PM, Nicolas Bigaouette wrote:
Its great news that the 3D is receiving more polish :)

After reading on wikipedia, wouldn't it be nicier to have Phong reflection[1] instead of Gouraud?

Maybe it would be too hard, as the Gouraud seems to be implemented directly in Agg (from what others just said...)

Anyway, just a suggestion ;)


[1] http://en.wikipedia.org/wiki/Phong_reflection_model


2009/8/26 Eric Firing <efiring@hawaii.edu>
Reinier Heeres wrote:
> Hi JJ,
>
> Thanks for the examples! I indeed suspected the anti-aliasing as well.
> I'll include an option for linecolors = facecolors soon (probably this
> weekend); it seems to be a good solution.

No, not in general.  There are two problems: it distorts the sizes and
positions of the patches, very slightly, but enough that it might be a
problem in some applications; and it does not work with alpha != 1.

Eric

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