#1 If you can get the player skin as a TextureAtlasSprite, then you can add it using TGG's createBakedQuadForFace method from the chess board tutorial.

 

#2 That's the entire point of IPerspectiveAwareModel. Look at the examples in the two posts I mentioned earlier - they both return different models based on perspective.

How do I return an IPerspectiveAwareModel for my item? Do I do this in getModel? If so, how do I cast it to a ModelResourceLocation? Thanks again.

UPDATE:

ModelBakeEvent, correct?

You create a class implementing it, and then register that class to your ModelResourceLocation during ModelBakeEvent.

I have most of it done. I appreciate your help @coolAlias. I have a class implementing IPerspectiveAwareModel and have registered it on the ModelBakeEvent. I'm pretty sure I still have to register the render for the item anyway? The tricky part for my item is that I want to de-render cuboids based on first person / third person etc. If you could just help me out on the the handlePerspective() method I think we can conclude this topic! By the way, why is almost everything deprecated?

public class ModelItem implements IPerspectiveAwareModel
{

private IBakedModel modelItem;

@Override
public List getFaceQuads(EnumFacing par1EnumFacing) 
{
	return this.modelItem.getFaceQuads(par1EnumFacing);
}

@Override
public List getGeneralQuads() 
{
	return this.modelItem.getGeneralQuads();
}

@Override
public boolean isAmbientOcclusion() 
{
	return this.modelItem.isAmbientOcclusion();
}

@Override
public boolean isGui3d() 
{
	return this.modelItem.isGui3d();
}

@Override
public boolean isBuiltInRenderer() 
{
	return this.modelItem.isBuiltInRenderer();
}

@Override
public TextureAtlasSprite getTexture() 
{
	return this.modelItem.getTexture();
}

@Override
public ItemCameraTransforms getItemCameraTransforms() 
{
	return this.modelItem.getItemCameraTransforms();
}

@Override
public Pair<IBakedModel, Matrix4f> handlePerspective(TransformType par1TransformType) 
{
	switch(par1TransformType)
	{
	case FIRST_PERSON: //What should I do here
		break;
	case THIRD_PERSON: //What should I do here
		break;
	case GUI: //What should I do here
		break;
	default:
		break;
	}
	return null; //What should I return here
}