kicad-developers team mailing list archive

[Tomasz Wlostowski <tomasz.wlostowski@xxxxxxx>]

On 02.08.2014 20:30, Andrew Zonenberg wrote:
> The attached patch parallelizes per-vertex normal calculation using
> OpenMP. I see a nearly 4x speedup of model loading on my quad-core
> machine.
Hi Andrew,

Caching the meshes including normals on disk could speed up loading even 
further:
- take the model file,
- mesh it (STEP) and calculate normals/other per-vertex/face stuff,
- save in internal binary format on disk along with the hash/name/date 
of the source model file.

On loading:
- first look in the RAM (the file might have been loaded already by 
another viewer instance),
- check the disk cache,
- if not found, mesh the model and update the disk cache.

Cheers,
Tom