我們在使用Unity開發的過程中,時常要使得材質有時候變透明,有時候不透明,在屬性面板中直接把材質設置成Cutout或Transparent模式又時常能看到物體的背面,效果很不理想,但是通過以下腳本可以動態改變材質的Rendering Mode。
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class MaterialModify : MonoBehaviour
{
public enum RenderingMode
{
Opaque,
Cutout,
Fade,
Transparent,
}
public static 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;
}
}
}
這樣,只需要調用MaterialModify中的方法“SetMaterialRenderingMode”就可以動態修改材質的Rendering Mode了。