Strange behaviour of shadowing in ThreeJS

Question

so I have a threeJS scene, and I have some spheres (multimaterial) added. I have also a directional light added :

this.light = new THREE.DirectionalLight(          


        

Answer 1

Based on your comments, what you are seeing is self-shadowing artifacts.

You need to adjust the shadowBias ( now called shadow.bias ) parameter.

Varying the shadow bias results in a trade-off between "peter-panning" (too much positive bias) and self-shadowing artifacts (too much negative bias).

three.js r.73