Unity之MaterialPropertyBlock优化Drawcall-Toy模板网

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一、不使用MaterialPropertyBlock效果

每更改一次颜色会重新实例化一份材质、不能进行动态合批，当物体比较多时Drawcall会比较高

materialpropertyblock,unity,unity,游戏引擎

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materialpropertyblock,unity,unity,游戏引擎

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

public class MaterialTest : MonoBehaviour
{
    public  List< MeshRenderer> list;
    // Start is called before the first frame update
    void Start()
    {
        for (int i = 0; i <list.Count ; i++)
        {
            if (i % 2 == 0)
            {
                list[i].material.color = Color.white;
            }
            else
            {
                list[i].material.color = Color.red;
            }
        }
    }   
}

二、使用MaterialPropertyBlock效果

更改颜色不会重新实例化一份材质、能进行动态合批，当物体比较多时能有效降低Drawcall提高帧率

materialpropertyblock,unity,unity,游戏引擎

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

public class MaterialTest : MonoBehaviour
{
    public  List< MeshRenderer> list;
    // Start is called before the first frame update
    void Start()
    {

        MaterialPropertyBlock materialPropertyBlock = new MaterialPropertyBlock();
        for (int i = 0; i < list.Count; i++)
        {
            materialPropertyBlock.SetColor("_Color", Color.white);
            list[i].SetPropertyBlock(materialPropertyBlock);
        }

    }   
}

三、使用MaterialPropertyBlock有多种颜色效果

相同颜色的物体，能够进行合批处理，示例中4个物体有两种颜色，合批后会有两个drawcall

materialpropertyblock,unity,unity,游戏引擎

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

public class MaterialTest : MonoBehaviour
{
    public  List< MeshRenderer> list;
    // Start is called before the first frame update
    void Start()
    {

        MaterialPropertyBlock materialPropertyBlock = new MaterialPropertyBlock();
        for (int i = 0; i < list.Count; i++)
        {
            if (i % 2 == 0)
            {
                materialPropertyBlock.SetColor("_Color", Color.white);
                list[i].SetPropertyBlock(materialPropertyBlock);
            }
            else
            {
                materialPropertyBlock.SetColor("_Color", Color.red);
                list[i].SetPropertyBlock(materialPropertyBlock);
            }
        }
    }   
}

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