using System;
using UnityEngine;
using UnityEngine.Rendering;

namespace Misaki.AoVolume
{
    [Serializable]
    [GenerateHLSL(PackingRules.Exact, false)]
    public struct VolumeData
    {
        [HideInInspector]
        [NonSerialized]
        public Matrix4x4 worldMatrix;
        [HideInInspector]
        [NonSerialized]
        public Matrix4x4 inverseWorldMatrix;

        public Vector3 size;

        [Range(0.0f, 1.0f)]
        public float intensity;
        [Range(0.0f, 1.0f)]
        public float falloff;
        [Range(0.0f, 1.0f)]
        public float normalFalloff;

        public static VolumeData Default => new()
        {
            size = Vector3.one,
            intensity = 1.0f,
            falloff = 0.25f,
            normalFalloff = 0.0f
        };
    }

    internal unsafe static class VolumeDataPtr
    {
        public static VolumeData* Zero => (VolumeData*)0;
    }
}