Ошибка CS0117 в коде на движке Unity 3d 2022 года

 using UnityEngine; 
 
namespace HFPS.Player 
{ 
    public class CameraBloodEffect : MonoBehaviour 
    { 
        private Material material = null; 
 
        public Texture2D bloodTexture; 
        public Texture2D bloodNormalMap; 
 
        [Range(0.0f, 1.0f)] 
        public float bloodAmount = 0.0f; 
 
        [Range(0.0f, 1.0f)] 
        public float distortion = 1.0f; 
 
        public Shader bloodShader = null; 
 
        void OnRenderImage(RenderTexture source, RenderTexture dest) 
        { 
            if (bloodShader == null) return; 
            if (material == null) 
            { 
                material = new Material(bloodShader); 
            } 
 
            if (material == null) return; 
 
            if (bloodTexture != null) 
            { 
                material.SetTexture("_BloodTex", bloodTexture); 
            } 
 
            if (bloodNormalMap != null) 
            { 
                material.SetTexture("_BloodBump", bloodNormalMap); 
            } 
 
            material.SetFloat("_Distortion", distortion); 
            material.SetFloat("_BloodAmount", bloodAmount); 
            Graphics.Blit(source, dest, material); 
        } 
    } 
}