[Bf-cycles] cycles point normals

Brecht Van Lommel brechtvanlommel at pandora.be
Sat Jun 11 11:05:08 CEST 2016


It depends on the specific mesh which is more memory efficient. I
expect that in the typical case only a small number of vertices needs
to be split, and the extra memory ends up being smaller than the extra
memory required for storing all normals per corner. Game engines do
such splitting too, but for all attributes including UVs, that would
likely reduce memory usage further.

On Sat, Jun 11, 2016 at 4:12 AM, Mohamed Sakr <3dsakr at gmail.com> wrote:
> Hi,
>
> I'm wondering why Mesh point normals attribute "aka ATTR_STD_VERTEX_NORMAL"
> is per vertex not per corner, why not making it a corner and avoid the point
> splitting? wouldn't this make mesh more consistent and using less memory??
> please advise.
>
> cheers,
> Mohamed Sakr
>
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