Shader graph, projection shader with Universal Render Pipeline

Hello,

I really need help

I have to apply a projection on an object (materials) from a position and with mask objects



I prepare shader graph :



And script for editing material/shader properties in realtime :

Code (CSharp):

1. using UnityEngine;
2.  
3. [ExecuteInEditMode]
4. public class SourceOrigin : MonoBehaviour
5. {
6.     [SerializeField]
7.     private Transform _sourceOrigin;
8.     [SerializeField]
9.     private float _angle = 30;
10.     [SerializeField]
11.     private Material _projectionMaterial;
12.  
13.     void Update()
14.     {
15.         if(_projectionMaterial != null && _sourceOrigin != null)
16.         {
17.             _projectionMaterial.SetFloat("Vector1_60695683", _angle);
18.             _projectionMaterial.SetVector("Vector3_C12940D2", _sourceOrigin.transform.position);
19.         }
20.     }
21. }
22.  

The problem is, I don't know how to use the shadergraph yet. Can someone help me?


I created a repository if necessary : https://github.com/laurentClave/ProjectionShader


Thank you !