Develop-19050-Frozen2/Unity-19050-05-BallPool/Assets/ParticleWorks/Script/ExtensionMethods.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace UltraCombos
{
    public static class ExtensionMethods
    {
        public static ComputeBuffer CreateIndirectComputeArgsBuffer(this ComputeShader shader, int num_thread_x, int num_thread_y, int num_thread_z)
        {
            uint x, y, z;
            shader.GetKernelThreadGroupSizes(0, out x, out y, out z);
            uint[] args = new uint[3]
            {
                (uint)Mathf.CeilToInt((float)num_thread_x / x),
                (uint)Mathf.CeilToInt((float)num_thread_y / y),
                (uint)Mathf.CeilToInt((float)num_thread_z / z)
            };
            var buf = new ComputeBuffer(1, args.Length * sizeof(uint), ComputeBufferType.IndirectArguments);
            buf.SetData(args);
            return buf;
        }
    }
}