Refactor Vertex Color export and import

OGRECave / blender2ogre

Blender exporter for the OGRE 3D engine

GNU Lesser General Public License v2.1

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Closed sercero closed 2 months ago

sercero commented 2 months ago

There were some issues with the code regarding Vertex Colors:

The exporter was stuck with conventions of Blender 2.7x like alpha not being part of the Vertex Color data.
In Blender 3.2+ the mesh now has color_attributes instead of vertex_colors
The importer had a bug where an unknown variable was being referenced.

sercero commented 2 months ago

@paroj is there a way to represent vertex colors with the RTSS?

And also per vertex transparency?

paroj commented 2 months ago

the RTSS follows the normal diffuse colour flow, which can track vertex colours and contain alpha. See (vertexcolour): https://ogrecave.github.io/ogre/api/latest/_material-_scripts.html#autotoc_md128