ScriptableRenderPipeline/Assets/ScriptableRenderLoop/HDRenderLoop/Lighting/SinglePass/SinglePass.cs

using UnityEngine;
using UnityEngine.Experimental.Rendering;
using System;

namespace UnityEngine.Experimental.ScriptableRenderLoop
{
    public class LightLoopSinglePass
    {
        string GetKeyword()
        {
            return "LIGHTLOOP_SINGLE_PASS";
        }        
    };

    //-----------------------------------------------------------------------------
    // structure definition
    //-----------------------------------------------------------------------------

    [GenerateHLSL]
    public enum ShadowType
    {
        Spot,
        Directional,
        Point
    };

    // TODO: we may have to add various parameters here for shadow
    // A point light is 6x PunctualShadowData
    [GenerateHLSL]
    public struct PunctualShadowData
    {
        // World to ShadowMap matrix
        // Include scale and bias for shadow atlas if any
        public Matrix4x4 worldToShadow;

        public ShadowType shadowType;
        public float bias;
        public float quality;
        public Vector2 unused;
    };
}