Bohman window function (1-2|x|)Cos[2Pi|x|]+Sin[2Pi|x|]/Pi on [-1/2 1/2]
BohmanWindow[x]
Plot[BohmanWindow[x], {x, -1, 1}]
→ -Graphics-Plot3D[BohmanWindow[x]BohmanWindow[y], {x, -1, 1}, {y, -1, 1}, PlotRange -> All]
→ -Graphics3D-BohmanWindow[0.1]
→ 0.8343114522576859