I want to create a half-circle, that I am going to use for RayCasting if one object can “see” another object. I looked at the various options and came to the conclusion that the disc builder was the best match for creating a circle like mesh. However I wanted to use a tesselation of 16 and arc of 0.5. The produced the following result, which is not nearly a half circle.
Using the default tesselation of 64 actually produces a good result.
Using the cyllinder builder gives a much better result on lower tesselation, but it does not actually produce a circle (height zero seems to default to something else).
Am I misunderstanding the parameters for the disc builder, or its general use? Does anyone have a suggestion for a better way to represent a circle, without actually implementing it myself?