Model shadow on ARSceneView

[pablojoseoroz]

Any example to show a model shadow? I try with LightNode, adding PlaneNode below ModelNode, setting isShadowCaster and isShadowReceiver, changing scenes lightEstimation, adding custom LightNode to scene... But never appears model shadow :-(

fun addModelNodeLocalOnHit(context: Context, hitResult: HitResult, model: String) {
        sceneView.modelLoader.loadModelAsync("models/$model") {
            it?.let {
                val parent = createAnchorNode(hitResult)
                ModelNode(
                    modelInstance = it.instance,
                    parent = parent,
                    centerOrigin = Position(y = -1f),
                    scaleToUnits = 0.004f
                ).apply {
                    //isEditable = true
                    isShadowCaster = true
                    isShadowReceiver = false
                }.also {
                    PlaneNode(
                        getEngine(),
                        size = Size(0.5f, 0.1f, .5f),
                        center = Position(y = -.5f),
                        materialInstance = MaterialLoader(getEngine(), context)
                            .createColorMaterial(Color(1f, 1f, 1f, 1f), 0f, 0f, 0f),
                        parent = it
                    ).apply {
                        isShadowCaster = false
                        isShadowReceiver = true
                    }
                }
                addChilNodeToScene(parent)
}

Thanks!

[ryust]

I've never gotten shadows to work either.

[natasam]

Did you find a solution for adding the shadow?

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[Dreiko]

@pablojoseoroz try to use the following material for the PlaneNode and ensure ModelNode is between directional light and plane.

4.2.29 Lighting: shadowMultiplier

material {
    name : GroundShadow,
    blending : transparent,
    shadingModel : unlit,
    shadowMultiplier : true
}

fragment {
    void material(inout MaterialInputs material) {
        prepareMaterial(material);
        material.baseColor = vec4(0.0, 0.0, 0.0, 0.5); // 0.5 is strength of the shadow. Change it or modify to use parameter.
    }
}

also check if shadows are enabled in the view

engine.createView().apply {
   setShadowingEnabled(true)
}