Sample a VectorGrid at an arbitrary world-space point.
Trilinear interpolation per component. Writes into out and
returns true when the sample is inside the grid; returns
false (leaves out zeroed) when outside.
out should be a length-3 array — caller-allocated so the
inner integration loop can reuse it without GC pressure.
Sample a VectorGrid at an arbitrary world-space point. Trilinear interpolation per component. Writes into
outand returnstruewhen the sample is inside the grid; returnsfalse(leavesoutzeroed) when outside.outshould be a length-3 array — caller-allocated so the inner integration loop can reuse it without GC pressure.