Unity3D开发之更改材质的渲染模式

在工业可视化的项目中，需要用到对某个部件的特写，如果直接隐藏其他的模型会感觉突兀，所以我们会使用设置其他模型为半透明模式。Unity5.0版本出现的新版标准材质可以让我们直接在面板上更改渲染模式。不过代码来更改渲染模式确实很麻烦，要改的参数很多。
public enum RenderingMode
{
Opaque,
Cutout,
Fade,
Transparent
}
//设置材质的渲染模式
private 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;
//material.SetFloat("" _Mode & quot;", 2);
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;
}
}效果如下图：



在需要更改渲染模式时直接输入相应的参数即可。