[MINC-users] Subdividing a coloured surface object

[Robert D. Vincent]

Hi Andrew,

The existing "subdivide polygons" code in the BIC programming library
ignores per-vertex or per-item colours.

I'm in the process of fixing that, by extending the colour array using what
is essentially a nearest-neighbour approach.

However, this will not subdivide the actual per-vertex data, which is
loaded separately.

    -bert

On Sat, Nov 18, 2017 at 2:11 PM, Andrew Wood <andrew at biospective.com> wrote:

> Hi all,
>
> I have a .txt surface atlas defined on an object that I'd like to
> subdivide, and I'm trying to get the same atlas defined on my highres
> surface. So far I've tried this:
>
> # Apply the colors to the object
> $ Display  surf_lowres.obj  -vertex atlas_lowres.txt   # File->Save File
> ./surf_lowres_coloured.obj
>
> # Subdivide the coloured mesh
> $ subdivide_polygons surf_lowres_coloured.obj  surf_hires_coloured.obj
>
> $ Display  surf_hires_coloured.obj
>
>
> I've also tried subdividing the polygons right in Display. In both cases,
> the vertex colours were lost. Is there a way to apply the same subdivision
> process to atlas values?
>
> Thanks,
> Andrew
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