ThreeJS open shadow right approach:
1. renderer enable shadow renderer.shadowMap.enabled = to true;
2. lighting shadows light.castShadow = to true;
3. Objects shadows obj.castShadow = to true;
4. shaded display surface obj.receiveShadow = true;
No shadow effect
Shadow effect, it produced many stripes
cause
1. squares arranged not to receive shadow obj.receiveShadow = false; avoid stripes, squares but there is no effect of the projection.
2. The material of the let Material's new new THREE.MeshLambertMaterial = ({Color: Color, Side: THREE.DoubleSide}); Side properties may be properly removed.
3. The material of the projection surface or the back surface can also be solved to let material = new THREE.MeshPhysicalMaterial ({color : color, side: THREE.DoubleSide, shadowSide: THREE.BackSide});
Correct shadow effects
to sum up:
Material Side , shadowSide settings affect the shadows, require special attention;
