Material overhaul

[grandcross]

@grandcross Check out: https://github.com/FreeCAD/FreeCAD/pull/11146
and fixes for BG and no navigation: https://github.com/FreeCAD/FreeCAD/pull/11360
It is currently implemented in the preferences dialog.

Just to be clear on what you're suggesting here:
1. That I look at this for an example of coin in a dialog? (of course)
2. That I use its results? (I'll certainly try)
3. That I implement similar functionality in the preview? (Hmm...)

[maxwxyz]

Just

1. That I look at this for an example of coin in a dialog? (of course)

as this is a similar implementation.

[grandcross]

On the one hand I should have looked at this earlier as it's much simpler, but on the other hand I learned so much doing it the hard way first

We'll go with the easy way though

[Syres]

@grandcross My local Self Test (with clean config files) is failing the material test at the first check by path

Code: Select all

Error: testMaterialByPath (materialtests.TestMaterials.MaterialTestCases)

In my self compiled build area I have the CalculiX-Steel.FCMat in two locations:

Code: Select all

/home/username/freecad-daily-build763/share/Mod/Material/Resources/Materials/StandardMaterial/Metal/Steel (789 bytes)
/home/username/freecad-daily-build763/share/Mod/Material/Resources/Materials/Standard/Metal/Steel (793 bytes)

Exactly where is the test looking for the file, apologies if I'm being dumb but it's not clear (perhaps in the test code there should be a print beforehand along the lines of "Looking for CalculiX-Steel.FCMat in ....path" just to assist those of us not really keeping up with all the changes).

[grandcross]

StandardMaterial was renamed to Standard, so the first shouldn't be there.I checked if the CMakeLists.txt is correct, and I don't see any issues. You should be able to remove the StandardMaterial and FluidMaterial folders. This shouldn't happen with a clean build but I'm not sure a 'make clean' would remove the old folders