获取材质着色器标记的值。
如果材质的着色器未定义标记,则返回 /defaultValue/。
如果 searchFallbacks
为 seachFallbacks
,则此函数在所有子着色器和所有回退中
查找标记。如果 seachFallbacks
为 /false/,则只对标记查询
当前使用的子着色器。
使用 GetTag
而不在回退中搜索可以检测
当前使用的子着色器:向每个子着色器添加具有不同值的自定义标记,
然后在运行时查询该值。例如,Unity 水使用此函数
检测着色器回退为不反射着色器的时间,并在这种情况下关闭反射
摄像机。
using UnityEngine;
public class Example : MonoBehaviour { // Attach this to a gameObject that has a renderer.
string materialTag = "RenderType";
void Start() { Renderer rend = GetComponent<Renderer>(); string result = rend.material.GetTag(materialTag, true, "Nothing");
if (result == "Nothing") { Debug.LogError(materialTag + " not found in " + rend.material.shader.name); } else { Debug.Log("Tag found!, its value: " + result); } } }
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