JolanYD wrote:
> On the rendered picture, we can see a kind of "hole" in the red cylinder that is> unwanted.
If you are referring to the black bar, it goes away when increasing
max_trace_level to 11. Also note that your stacked cylinders have
coincident surfaces which causes some graininess, add 0.001 to the
y value of the first point in cylinders layer2 and layer3.
