using UnityEngine;

namespace AQUAS
{
	public class AQUAS_FrontFaceMask : MonoBehaviour
	{
		public Material mat;

		private Material bufferMat;

		private Material matNull;

		private RenderTexture target;

		private Camera cam;

		public GameObject nextCam;

		public GameObject waterObj;

		public Renderer rend;

		public Shader[] waterShaders;

		public bool checkForGridProjection = true;

		private void Start()
		{
			mat = new Material(Shader.Find("Hidden/AQUAS/Utils/Front Face Mask"));
			matNull = new Material(Shader.Find("Hidden/AQUAS/Null"));
			target = new RenderTexture(Screen.width, Screen.height, 32, RenderTextureFormat.ARGBHalf);
			cam = GetComponent<Camera>();
			cam.targetTexture = target;
			cam.pixelRect = new Rect(0f, 0f, Screen.width, Screen.height);
			waterShaders = new Shader[2];
		}

		private void OnPreCull()
		{
			if (waterObj == null)
			{
				return;
			}
			waterObj.layer = LayerMask.NameToLayer("Water");
			Material[] sharedMaterials = rend.sharedMaterials;
			foreach (Material material in sharedMaterials)
			{
				material.shader = Shader.Find("Hidden/AQUAS/Utils/Depth Only");
				if (base.transform.parent.GetComponent<AQUAS_ProjectedGrid>() == null)
				{
					material.SetFloat("_ProjectGrid", 0f);
				}
				else
				{
					material.SetFloat("_ProjectGrid", 1f);
				}
			}
		}

		private void OnPostRender()
		{
			if (!(waterObj == null))
			{
				waterObj.layer = LayerMask.NameToLayer("Default");
				rend.sharedMaterials[0].shader = waterShaders[0];
				rend.sharedMaterials[1].shader = waterShaders[1];
			}
		}

		private void OnRenderImage(RenderTexture source, RenderTexture destination)
		{
			if (waterObj == null)
			{
				Graphics.Blit(source, destination, matNull);
				nextCam.GetComponent<AQUAS_UnderWaterEffect>().mask = target;
				target.Release();
			}
			else
			{
				Graphics.Blit(source, destination, mat);
				nextCam.GetComponent<AQUAS_UnderWaterEffect>().mask = target;
				target.Release();
			}
		}

		private void Update()
		{
		}
	}
}