using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Thousandto.Launcher.ExternalLibs
{
    //使用Stencil来实现阴影的脚本
    public class FStencilShadowScript : MonoBehaviour
    {
        //接受阴影的面板
        public Transform ReceiverPanel;
        //灯光位置方向 
        //public Transform LightTransform;
        // Use this for initialization
        void Start()
        {
            if (ReceiverPanel == null)
                ReceiverPanel = transform;
        }

        // Update is called once per frame
        void LateUpdate()
        {
            UpdateLightDir();
        }

        void UpdateLightDir()
        {
            /*
            Vector4 source;
            if (LightTransform != null)
            {
                Vector3 direction = LightTransform.forward;
                source = new Vector4(direction.x, direction.y, direction.z, 0.0f);
                Shader.SetGlobalVector("_LightDir", source);
                Debug.Log(source);
            }
            */

            if (ReceiverPanel != null)
            {
                Shader.SetGlobalMatrix("_World2Receiver", ReceiverPanel.worldToLocalMatrix);
            }

            //Shader.SetGlobalVector("_ShadowColor", shadowColor);
        }
    }
}