display of polygon with hole in 3D does not display internal faces

[benoitgaudou]

Describe the bug The following model allows to display in 3d a geometry with a hole.

model NewModel

global {
	init {
		create people {
			shape <- circle(10) - circle(5);
		}
	}
}

species people {
	aspect default {
		draw shape color: #darkgrey depth: 10;
	}
}

experiment name type: gui {
	output {
		display d type: opengl {
			species people;
		}
	}
}

Expected behavior It seems that the internal face is not displayed.

Screenshots

Desktop (please complete the following information):

• OS: macOS
• GAMA version: git

[AlexisDrogoul]

Added in #2209.

[AlexisDrogoul]

Reopening this issue for the next round of development on GAMA 2.0