using UnityEngine;
using UnityEngine.XR;

namespace DynamicFogAndMist
{
	[ImageEffectAllowedInSceneView]
	[HelpURLAttribute("http://kronnect.com/taptapgo")]
	[ExecuteInEditMode]
	[RequireComponent(typeof(Camera))]
	public class DynamicFog : DynamicFogBase
	{
		private void OnRenderImage(RenderTexture source, RenderTexture destination)
		{
			if (fogMat == null || _alpha == 0f || currentCamera == null)
			{
				Graphics.Blit(source, destination);
				return;
			}
			if (shouldUpdateMaterialProperties)
			{
				shouldUpdateMaterialProperties = false;
				UpdateMaterialPropertiesNow();
			}
			if (currentCamera.orthographic)
			{
				if (!matOrtho)
				{
					ResetMaterial();
				}
				fogMat.SetVector("_ClipDir", currentCamera.transform.forward);
			}
			else if (matOrtho)
			{
				ResetMaterial();
			}
			if (_useSinglePassStereoRenderingMatrix && XRSettings.enabled)
			{
				fogMat.SetMatrix("_ClipToWorld", currentCamera.cameraToWorldMatrix);
			}
			else
			{
				fogMat.SetMatrix("_ClipToWorld", currentCamera.cameraToWorldMatrix * currentCamera.projectionMatrix.inverse);
			}
			Graphics.Blit(source, destination, fogMat);
		}
	}
}