112 lines
4.8 KiB
C#
112 lines
4.8 KiB
C#
using UnityEngine;
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/// <summary>
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/// 材质渲染模式助手类
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/// 用于设置材质的正确渲染模式以支持透明度
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/// </summary>
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public static class MaterialRenderModeHelper
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{
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public enum BlendMode
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{
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Opaque,
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Cutout,
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Fade, // Traditional transparency (ZWrite OFF)
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Transparent, // Physically based transparency (ZWrite OFF)
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AlphaBlendWithDepth // Alpha blend with depth write (ZWrite ON) - 解决Body显示问题
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}
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/// <summary>
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/// 设置材质的渲染模式
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/// </summary>
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/// <param name="material">要设置的材质</param>
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/// <param name="blendMode">渲染模式</param>
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public static void SetMaterialRenderMode(Material material, BlendMode blendMode)
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{
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switch (blendMode)
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{
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case BlendMode.Opaque:
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
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material.SetInt("_ZWrite", 1);
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material.DisableKeyword("_ALPHATEST_ON");
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material.DisableKeyword("_ALPHABLEND_ON");
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material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
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material.renderQueue = -1;
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break;
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case BlendMode.Cutout:
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.Zero);
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material.SetInt("_ZWrite", 1);
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material.EnableKeyword("_ALPHATEST_ON");
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material.DisableKeyword("_ALPHABLEND_ON");
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material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
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material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.AlphaTest;
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break;
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case BlendMode.Fade:
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
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material.SetInt("_ZWrite", 0);
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material.DisableKeyword("_ALPHATEST_ON");
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material.EnableKeyword("_ALPHABLEND_ON");
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material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
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material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;
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break;
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case BlendMode.Transparent:
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.One);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
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material.SetInt("_ZWrite", 0);
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material.DisableKeyword("_ALPHATEST_ON");
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material.DisableKeyword("_ALPHABLEND_ON");
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material.EnableKeyword("_ALPHAPREMULTIPLY_ON");
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material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;
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break;
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case BlendMode.AlphaBlendWithDepth:
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// 关键修复：保持深度写入的透明混合模式
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material.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
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material.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
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material.SetInt("_ZWrite", 1); // 保持深度写入，这样Body即使单独存在也能正确显示
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material.DisableKeyword("_ALPHATEST_ON");
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material.EnableKeyword("_ALPHABLEND_ON");
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material.DisableKeyword("_ALPHAPREMULTIPLY_ON");
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// 使用较早的渲染队列，确保在其他透明物体之前渲染
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material.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Geometry + 450;
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break;
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}
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}
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/// <summary>
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/// 自动检测并设置合适的渲染模式
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/// </summary>
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/// <param name="material">材质</param>
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/// <param name="alpha">透明度值</param>
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public static void AutoSetRenderMode(Material material, float alpha)
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{
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if (alpha >= 1.0f)
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{
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SetMaterialRenderMode(material, BlendMode.Opaque);
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}
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else
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{
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SetMaterialRenderMode(material, BlendMode.AlphaBlendWithDepth);
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}
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}
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/// <summary>
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/// 专门为Body设置渲染模式
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/// 确保Body在单独显示时也能正确显示
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/// </summary>
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/// <param name="material">Body材质</param>
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/// <param name="alpha">透明度值</param>
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public static void SetBodyRenderMode(Material material, float alpha)
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{
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if (alpha >= 1.0f)
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{
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SetMaterialRenderMode(material, BlendMode.Opaque);
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}
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else
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{
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// 对于Body，始终使用保持深度写入的透明模式
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SetMaterialRenderMode(material, BlendMode.AlphaBlendWithDepth);
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}
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}
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} |