Common Operator Info
teapot behind a wall
The Cross Grid draws cross sections of the input, also perpendicular to the world planes. The ortho and cross grids use the same grid spacing.
The Base controls the dynamic grid spacing. The default 'base 10' spacing specifies decimal grid steps. The spacing will exponentially adjust as the view point is adjusted. The intent is that the grid is neither too dense to read nor too sparse to judge.
A non-zero Excess will expand the bounding box used for the ortho grid.
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