namespace UnityEngine.Rendering.Universal
{
    public enum BufferType
    {
        CameraColor,
        Custom
    }

    public class DrawFullScreenFeature : ScriptableRendererFeature
    {
        [System.Serializable]
        public class Settings
        {
            public RenderPassEvent renderPassEvent = RenderPassEvent.AfterRenderingTransparents;
            public BufferType sourceType = BufferType.CameraColor;
            public BufferType destinationType = BufferType.CameraColor;
            public string sourceTextureId = "_SourceTexture";
            public string destinationTextureId = "_DestinationTexture";
            public string tempTextureId = "_Temp";
            public string grabTexName = "_GrabTexTexture";
        }

        public Settings settings = new Settings();
        DrawFullScreenPass blitPass;

        public override void Create()
        {
            blitPass = new DrawFullScreenPass(name, settings.tempTextureId, settings.grabTexName);
        }

        public override void AddRenderPasses(ScriptableRenderer renderer, ref RenderingData renderingData)
        {

            blitPass.renderPassEvent = settings.renderPassEvent;
            blitPass.settings = settings;
            renderer.EnqueuePass(blitPass);
        }
    }
}