Unity Job System 入门

Job System

• IJobParallelFor

代码

using Unity.Burst;
using Unity.Jobs;

public static class JobRandomTest
{
    [BurstCompile(CompileSynchronously = true)]
    private struct JobForRandom : IJobParallelFor
    {
        private readonly uint m_seed;
        public NativeArray<float> Result;

        public JobForRandom(NativeArray<float> result, uint seed = 3)
        {
            Result = result;
            m_seed = seed;
        }

        public void Execute(int index)
        {
            Random rnd = Random.CreateFromIndex((uint) (index + m_seed));
            Result[index] = rnd.NextFloat(0, 100);
        }
    }

    public static void Execute(uint seed)
    {
        var container = new NativeArray<float>(100, Allocator.TempJob);

        JobForRandom job = new JobForRandom(container, seed);
        JobHandle jobHandle = job.Schedule(container.Length, 1);
        jobHandle.Complete();

        var result = job.Result.ToList();

        foreach(var r in result)
        {
            Debug.Log(r);
        }

        job.Result.Dispose();
    }
}

参考

• 基于URP屏幕空间采样与JobSystem加速的战争迷雾