I add one node and try to setting shadow blur with SceneKit here's my light config, I did try to set shadowRadius light = [SCNLight light]; light.type = SCNLightTypeDirectional; light.castsShadow =
SceneKit produces soft-edged shadows by rendering the silhouettes of scene geometry into a 2D shadow map and then using several weighted samples from the shadow map to determine the strength of the shadow at each pixel in the rendered scene.
