Render custom Line Styles as road markings, export to LumenRT

Hi all,

I've created a couple of custom line styles for road marking, to be rendered with Luxology and hopefully also exported to LumenRT.

The first problem is that the thickness of my dashed lines does not diminish as it progresses further from the camera. It seems to suddenly transition to a much thinner line at a random distance. Why is this?

I've also created a solid white line with the same thickness/ width settings as the dashed line, but it doesn't render with the correct thickness.

Here is a summary of the issues, as well as my Line Style settings.

Finally - is it still not possible to export these line styles to LumenRT? Here is an old post on the issue;

https://communities.bentley.com/communities/user_communities/ohio_dot__consultants/f/odot---general-microstation/132309/custom-linestyles-for-rendering

Thanks,

Max

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  • Hi Ron, I did have the Physical checked for the dashed line – but not for the solid, so thanks for pointing that out.

    I think I’ve identified the problem as relating to the position of the sun in renderings. This problem goes way back to ray traced lines in SE/J editions. I was hoping there might be some setting to ignore the “angle of solar incidence” or something.

    A work-around is to assign a glow material to the geometry, which can sometimes make distant lines more visible but has the downside of glowing too brightly when in shade...

    To export line work that represents physical items such as pavement markings you need to use the Stencil tool. The Stencil tool uses the linestyles to create renderable mesh geometry that represent the linestyle by projecting them onto the underlying geometry.

    I usually use stencilling for closer/ street views and animations (both luxology and LumenRT), but that would be a lot of unnecessary clicks for a large city model that will only be viewed from a distance, and may or may not go to LumenRT later on. I’m trying to find the most flexible road marking techniques for rendering large urban models, to be used interchangeably in Luxology and LumenRT – from all angles and distances.

    Max