How soft shadow edges are
A wider filter softens the edges and costs more texture reads per shadowed pixel:
'hard'
'pcf'
'pcf-high'
On most GPUs each read blends four neighbouring texels, so even 'hard' has a slightly soft edge. Set per view through View3D#shadowFilter.
view3d.shadowFilter = 'pcf-high'; Copy
view3d.shadowFilter = 'pcf-high';
How soft shadow edges are
A wider filter softens the edges and costs more texture reads per shadowed pixel:
'hard': one read; the crispest, cheapest edge, and the friendliest to mobile.'pcf': four reads; smooth edges at low cost. The default.'pcf-high': nine reads; the widest, softest edge, for higher-end devices.On most GPUs each read blends four neighbouring texels, so even
'hard'has a slightly soft edge. Set per view through View3D#shadowFilter.