将此函数添加到一个子类中,以在立方体贴图纹理完成导入之前获取通知。
注意,应避免以这种方式修改 TextureImporter 设置,因为这对当前导入的纹理无效,但会在下次导入纹理时应用。这种行为具有不确定性,因此不建议使用。
using UnityEditor; using UnityEngine; using System.Collections;
// Postprocesses all cubemaps that are placed in a folder // Here we just halve the texels values public class ProcessCubemap : AssetPostprocessor { void OnPostprocessCubemap(Cubemap texture) { string lowerCaseAssetPath = assetPath.ToLower(); if (lowerCaseAssetPath.IndexOf("/postprocessedcubemaps/") == -1) return;
for (int m = 0; m < texture.mipmapCount; m++) { for (int face = 0; face < 6; face++) { CubemapFace f = (CubemapFace)face; Color[] c = texture.GetPixels(f, m);
for (int i = 0; i < c.Length; i++) { c[i].r = c[i].r * 0.5f; c[i].g = c[i].g * 0.5f; c[i].b = c[i].b * 0.5f; }
texture.SetPixels(c, f, m); } // Instead of setting pixels for each mipmap level, you can also // modify only the pixels in the highest mip level. And then simply use // texture.Apply(true); to generate lower mip levels. } } }
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