Unity 3D动态修改Shader状态，使物体透明等等_untiy 代码设置shader,并解决在手机上透明效果不对的问题

Unity动态改Shader状态透明

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Chinar 教程效果：

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全文高清图片，点击即可放大观看 (很多人竟然不知道)

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1

Change Matirials Shader —— 改变材质着色状态

一个简单的小例子，没什么可说的

可以很简便的完成一个物体材质 Shader 的动态更改

using UnityEngine;


/// <summary>
/// 枚举Shader4种状态类型
/// </summary>
public enum RenderingMode
{
    Opaque,
    Cutout,
    Fade,
    Transparent,
}


/// <summary>
/// 测试类：用于动态修改Shader
/// </summary>
public class Chinar : MonoBehaviour
{
    public GameObject CubeGameObject; //需要改变Shader的物体
    public float      Speed = 15f;    //时间插值


    void Update()
    {
        transform.Rotate(Vector3.up, Speed * Time.deltaTime);
    }


    /// <summary>
    /// 绑定按钮：改变Shader状态
    /// </summary>
    public void ChangeShader()
    {
        //设置材质的颜色为半透明的颜色/材质有贴图，那么贴图也必须是半透明的才能看到效果
        CubeGameObject.GetComponent<MeshRenderer>().material.color = RandomColor();
        SetMaterialRenderingMode(CubeGameObject.GetComponent<MeshRenderer>().material, RenderingMode.Transparent);
    }


    /// <summary>
    /// 随机颜色
    /// </summary>
    /// <returns> Color </returns>
    private Color RandomColor()
    {
        float r     = Random.Range(0f, 1f);
        float g     = Random.Range(0f, 1f);
        float b     = Random.Range(0f, 1f);
        float a     = Random.Range(0f, 0.5f); //这里随机透明度
        Color color = new Color(r, g, b, a);
        return color;
    }


    /// <summary>
    /// 具体处理材质Shader函数
    /// </summary>
    /// <param name="material"></param>
    /// <param name="renderingMode"></param>
    public void SetMaterialRenderingMode(Material material, RenderingMode renderingMode)
    {
        switch (renderingMode)
        {
            case RenderingMode.Opaque:
                material.SetInt("_SrcBlend", (int) UnityEngine.Rendering.BlendMode.One);
                material.SetInt("_DstBlend", (int) UnityEngine.Rendering.BlendMode.Zero);
                material.SetInt("_ZWrite",   1);
                material.DisableKeyword("_ALPHATEST_ON");
                material.DisableKeyword("_ALPHABLEND_ON");
                material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
                material.renderQueue = -1;
                break;
            case RenderingMode.Cutout:
                material.SetInt("_SrcBlend", (int) UnityEngine.Rendering.BlendMode.One);
                material.SetInt("_DstBlend", (int) UnityEngine.Rendering.BlendMode.Zero);
                material.SetInt("_ZWrite",   1);
                material.EnableKeyword("_ALPHATEST_ON");
                material.DisableKeyword("_ALPHABLEND_ON");
                material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
                material.renderQueue = 2450;
                break;
            case RenderingMode.Fade:
                material.SetInt("_SrcBlend", (int) UnityEngine.Rendering.BlendMode.SrcAlpha);
                material.SetInt("_DstBlend", (int) UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
                material.SetInt("_ZWrite",   0);
                material.DisableKeyword("_ALPHATEST_ON");
                material.EnableKeyword("_ALPHABLEND_ON");
                material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
                material.renderQueue = 3000;
                break;
            case RenderingMode.Transparent:
                material.SetInt("_SrcBlend", (int) UnityEngine.Rendering.BlendMode.One);
                material.SetInt("_DstBlend", (int) UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
                material.SetInt("_ZWrite",   0);
                material.DisableKeyword("_ALPHATEST_ON");
                material.DisableKeyword("_ALPHABLEND_ON");
                material.EnableKeyword("_ALPHAPREMULTIPLY_ON");
                material.renderQueue = 3000;
                break;
        }
    }
}
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2

Change Matirials Shader —— 改变材质着色状态

不明白的请下载Demo

简单易懂，拿了就用！

简单易懂游戏中动态修改Shader状态的例子、实现透明

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<script type="math/tex" id="MathJax-Element-2"> </script>
Chinar

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