[Interest] How to combine glLineWidth call with Qt3D in QML?

Bin Chen bchen at topcon.com
Wed Sep 9 05:39:10 CEST 2015

Hi, Guys,

I am evaluating Qt3D with a new project. I wrote a customised Qt3D object for loading and displaying triangle mesh lines in 3d scene and wondering where I can put in glLineWidth to change the line width.

What I am doing is inheriting from Qt3D::QAbstractMesh, and providing a Qt3D::QAbstractMeshFunctorPtr to return Qt3D::QMeshData constructed with Qt3D::QMeshData::Lines. 

I can’t find anywhere I can specify the line width in any Qt3D QML objects.

I know I can achieve that by shaders but I think using glLineWidth is a simpler way to do it.

Does Qt3D allow me to specify any OpenGL function calls during rendering for a particular object?

Thanks very much!

Bin Chen

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