Blender Git Loki

Merge remote-tracking branch 'origin/master' into lanpr-under-gp

Merge branch 'property-search-all-tabs-v2' into property-search-ui-v2

Merge branch 'property-search-all-tabs' into property-search-ui-v2

Merge branch 'property-search-highlight-tabs' into property-search-all-tabs-v2

Merge branch 'property-search-start-end-operators' into property-search-highlight-tabs

Merge branch 'property-search-single-tab' into property-search-start-end-operators

Property Search: Apply fixes from all tab code

Property Search: Fixes for all tab search V2

Review update: fix exporter UI.

Export loop normals not vertex normals.

Don't write default scale and translation.

Also fix debug warning of material not found.

Add asserts to catch unchanged values.

Minor fixes, use scoped_timer for export too.

Cleanup: comments and rna warning.

Fix UI tooltips, layout, frame setting.

Fix NodetreeRef crashing due to null nodetree.

Move uv_indices in OBJMesh. Save some memory.

Since OBJMesh has dynamically allocated space in smooth groups
and uv_indices (which can be a lot), destruct objects that have
been written.

Use `const` at some places.

Hide Nurb from Writer. Rename OBJNurbs as per object type.

Remove export_params_ from OBJNurbs.

Remove export_params_ member from OBJMesh.

Not expose MPoly to writer. Write normals correctly

Write vertex normals only of smooth shaded polygons, otherwise
write face normals.

Keep normal indices in writer only since OBJMesh doesn't need to know
about export parameters. (will remove more such items from OBJMesh
later on.)

Keep MPoly related operations inside OBJMesh only & don't expose it to
Writer.

Review update: use float3, std::optional, c_str()

split nurbs function into two.

Add material name append if material groups are specified.