修自发光回归：glTF 导入端写 emissiveFactor（EMISSIVE_COLOR，贴图无 factor 时设白）；Emissive 兜底纹理黑→白（黑兜底会把 factor/strength 一起乘没）

2026-10-09 00:12:35 +08:00
parent 6447b5c0fa
commit f14aba4238
2 changed files with 23 additions and 1 deletions
@@ -29,7 +29,12 @@ namespace Engine
            return Texture::CreateSolidColor(device, allocator,
                                             0, 128, 0, false);
        case Material::Emissive:
-            return Texture::CreateSolidColor(device, allocator, 0, 0, 0);
+            // 兜底白（非黑）：emissive = 贴图 × factor × strength——黑
+            // 兜底会把无贴图材质的 factor/strength 一起乘没（调了恒黑
+            // 的困惑源）；白兜底 = 无贴图时 factor 即发光色，有贴图时
+            // glTF 语义不变（factor 黑的普通模型依旧不发光）
+            return Texture::CreateSolidColor(device, allocator,
+                                             255, 255, 255);
        case Material::Ao:
            return Texture::CreateSolidColor(device, allocator,
                                             255, 0, 0, false);