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                                            Holance

Problem with the color of models loaded from the *.ply file.

https://github.com/helix-toolkit/helix-toolkit/blob/develop/Source/Examples/WPF.SharpDX/FileLoadDemo/MainViewModel.cs And add following at line 323: ``` else if (m.Material is DiffuseMaterialCore diffuse) { diffuse.VertexColorBlendingFactor = 1.0f; } ```

Problem with the color of models loaded from the *.ply file.

Not sure what you mean by vertexQuality.

Problem with the color of models loaded from the *.ply file.

This seems to be a custom attribute, and we don't support it. You probably have to create your own importer to get the custom attribute.

Problem with the color of models loaded from the *.ply file.

I am not seeing you are adding Geometry.Indices.

How to change colour of STL selected model?

Find the material associated with the model and change its color.

LineMaterialGeometryModel3D Shadows are not correct

Seems like your shadow camera is causing the issue. Also I notice your camera parameter values are way too big, particularly on far plane/near plane distance. It may cause floating...

textures with an alpha channel.

Could you provide some examples?

textures with an alpha channel.

You need to make sure the models with semi-transparent textures are rendered after all opaque models. You need to set the `IsTransparent = true` for semi-transparent models.

textures with an alpha channel.

Which Helixtoolkit package are you using?

textures with an alpha channel.

You can just move the model with alpha channel to the end of the list in group so it will be rendered after opaque models.