directionalLight.castShadow not working

Questions
1

Why am I getting this error when I change directionalLight.castShadow = true?

THREE.WebGLProgram: Shader Error 0 - VALIDATE_STATUS false

image
image857×575 15.3 KB

code:

var directionalLight= new THREE.DirectionalLight(0xffffff,.2);
  directionalLight.position.set(5,5,5);
  // directionalLight.castShadow = true

.
Thanks,
Binoy

2

You’re most likely using some custom material (or a mix of them) that does not support light shadows properly - but it’s hard to say without knowing more details about the project / dependencies you’re using.

3

I am using MeshStandardMaterial. I have applied some properties such as roughness and metalness and has an envMap

4

And there are absolutely no other dependencies installed or custom shader materials used in the app, besides three ?

Could you show the code of how you create the material?

5 
function setMaterials(model) {
  model.traverse((mesh) => {
    if(mesh.isObject3D){
      mesh.castShadow = true
      mesh.recieveShadow = true
    }
    if (!mesh.isMesh) return;
     material = mesh.material
     material.opacity = material?.userData?.opacity;
     material.emissive = material?.userData?.color;
     material.color = material?.userData?.color;
     material.specularColor = material?.userData?.specular;
     material.roughness = 1 - material?.userData?.shininess / 100;
     material.metalness = material?.userData?.shininess / 100;
     material.side = material?.userData?.side;
     material.transparent = material?.userData?.transparent;
  });

  return model;
}
6
  1. recieveShadow :point_right: receiveShadow, but that won’t really fix the error.
  2. The second question was more important - is three the only dependency? Which version of three are you using and how are you including it in the project? Are you modifying / creating shaders in any way?
  3. Does the error disappear when you remove all the lines related to material in the code shared above?
7

Yes, there are no shaders added. I added three in a separate file. THREE.REVISION is
‘148’. The error only occurs when directionalLight.castShadow is true