How to choose more than one object using MRTK Color Picker

[Nyri-N]

Hello, I was wondering how to set the MRTK Color Picker up to affect multiple meshes (to affect either child objects or just multiple meshes). We're beginners in C# so apologies if this is a dumb question 😅

[RogPodge]

Unfortunately the color picker in it's current experiemental state is only designed to work in the example scene against things designated as "TargetObject (Mesh)" and "TargetObject (Sprite)"

MixedRealityToolkit-Unity/Assets/MRTK/SDK/Experimental/ColorPicker/ColorPicker.cs

Lines 211 to 219 in 6e06145

	public void SummonColorPicker(GameObject container)
	{
	this.gameObject.SetActive(true);
	transform.localScale = Vector3.one;
	transform.position = GameObject.Find(container.name + "/Anchor").transform.position;
	TargetObjectMesh = GameObject.Find(container.name + "/TargetObject (Mesh)").GetComponent<MeshRenderer>();
	TargetObjectSprite = GameObject.Find(container.name + "/TargetObject (Sprite)").GetComponent<SpriteRenderer>();
	ExtractColorFromMaterial(TargetObjectMesh);
	}

You can modify the color picker to work against an arbitrary number of objects by adjusting the code to store a list of objects that can be affected by it. These objects can have the proper color applied to them during the ApplyColor() method.

MixedRealityToolkit-Unity/Assets/MRTK/SDK/Experimental/ColorPicker/ColorPicker.cs

Lines 301 to 334 in 6e06145

	private void ApplyColor()
	{
	if (GradientMesh != null && GradientMesh.material != null)
	{
	GradientMesh.material.color = Color.HSVToRGB(Hue, 1, 1);
	}
	if (TargetObjectMesh != null && TargetObjectMesh.material != null)
	{
	TargetObjectMesh.material.color = CustomColor;
	}
	if (TargetObjectSprite != null)
	{
	TargetObjectSprite.color = CustomColor;
	}
	foreach (MeshRenderer rend in PickerUIMeshes)
	{
	if (rend != null)
	{
	rend.material.color = CustomColor;
	}
	}
	foreach (SpriteRenderer rend in PickerUISprites)
	{
	if (rend != null)
	{
	rend.color = CustomColor;
	if (rend.name == "Dragger")
	{
	// don't fade the alpha of the dragger object
	rend.color = new Color(CustomColor.r, CustomColor.g, CustomColor.b, 1);
	}
	}
	}
	}

Unforunately, I don't think the MRTK team has the capacity to tackle this feature request right now, but we'll gladly accept any community contribution to improve this component! It's still in the experimental state, so we are more likely to accept any breaking changes to it!