This material can receive shadows, but otherwise is completely transparent.
var planeGeometry = new v3d.PlaneGeometry(2000, 2000);
planeGeometry.rotateX(- Math.PI / 2);
var planeMaterial = new v3d.ShadowMaterial();
planeMaterial.opacity = 0.2;
var plane = new v3d.Mesh(planeGeometry, planeMaterial);
plane.position.y = -200;
plane.receiveShadow = true;
scene.add(plane);
[page:Object parameters] - (optional) an object with one or more properties defining the material's appearance.
Any property of the material (including any property inherited from [page:Material] and [page:ShaderMaterial]) can be passed in here.
See the base [page:Material] and [page:ShaderMaterial] classes for common properties.
Used to check whether this or derived classes are shadow materials. Default is *true*.
You should not change this, as it used internally for optimisation.
Whether the material is affected by lights. Default is *true*.
Defines whether this material is transparent. Default is *true*.
See the base [page:Material] and [page:ShaderMaterial] classes for common methods.
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