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Materials: Set transparency from DiffuseColor

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Migrate the transparency from the DiffuseColor alpha channel to the
transparency color attribute. This allows the alpha channel to be
used as designed

fixes #14938
This commit is contained in:
David Carter
2024-09-21 00:07:00 -04:00
committed by Chris Hennes
parent 4e45d3b408
commit 5bc0684ecd
3 changed files with 23 additions and 2 deletions
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13
src/Mod/Part/Gui/ViewProviderExt.cpp
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@@ -341,8 +341,17 @@ void ViewProviderPartExt::onChanged(const App::Property* prop)
}
else if (prop == &_diffuseColor) {
// Used to load the old DiffuseColor values asynchronously
ShapeAppearance.setDiffuseColors(_diffuseColor.getValues());
ShapeAppearance.setTransparency(Transparency.getValue() / 100.0F);
// v0.21 used the alpha channel to store transparency values
std::vector<App::Color> colors = _diffuseColor.getValues();
std::vector<float> transparencies;
transparencies.resize(static_cast<int>(colors.size()));
for (int i = 0; i < static_cast<int>(colors.size()); i++) {
Base::Console().Log("%d: %f\n", i, colors[i].a);
transparencies[i] = colors[i].a;
colors[i].a = 1.0;
}
ShapeAppearance.setDiffuseColors(colors);
ShapeAppearance.setTransparencies(transparencies);
}
else if (prop == &ShapeAppearance) {
setHighlightedFaces(ShapeAppearance);