I'm having another puzzling issue in relation with 3D extruded layers (the first one had to do with a bug in multithreaded rendering of 3D extruded layers here).
It's in a scene of someone riding through a street on a scooter, seen from the perspective of that person.
I had experimented a little with extruding shapes, and next to using that to create the house blocks, I found that it worked quite well to create some of the objects for that scene, like a tram and a couple of parked cars. It's of course no true 3D, but that's not required in this case.
But when I did some test renders I found that the cars that I had thus made rendered in black-and-white, while they're coloured in both the workspace and the preview. This time it makes no difference if it's single-or multi-threaded rendering (though the multi-threaded also shows that 'flickering layers bug' here).
The interesting thing is that another 3D extruded object - the tram - does get properly rendered in colour (in the yellow circle in the screen captures).
I think I looked at pretty much anything that I could think of to find if there was anything that was different on those black-and-white-rendering car layers compared to the tram one, but I cannot find anything at all.
Because it has grown into quite a complex scene I wondered if it was maybe the layer depth (the car layers are nested two group layer levels deep), but when I copied the tram to that group layer it showed up in colour.
I also tried drawing additional simple shapes in the layers with the cars, such as a yellow triangle - to exclude that the car shapes might have some hidden problem that only showed up when rendered. But no, the yellow triangle when drawn in those layers also lost its colour.
Anyone any idea what the problem might be?
Images: the first is the workspace; the second a preview; and the last one is a frame from the rendered video file.
Anime Studio Pro 11.1 / OSX Yosemite 10.10.5
