fix: 阴影不可见——灯序依赖遍历顺序 + 光比失衡,新增帧截图调试能力
- 灯序修复(根因):entt Each 遍历序不保证创建序,lights[0] 曾落到 点光(params.x=1)→ shader 阴影分支整个跳过。收集后 stable_sort 方向光排前,确立"lights[0] = CSM 阴影光源"契约 - 光比失衡:IBL 环境与点光淹没主光阴影。KeyLight 5.0 + exposure 默认 0.6 + ambientColor 0.07;阴影区环境光同步衰减(简化遮蔽) - ShadowPass depth bias 0.006(acne 均值形态 vs 推过头丢阴影的折中) - Renderer 帧截图能力:第 60 帧自动截 HDRColor/ShadowMap 落 BMP (ACES+gamma 还原屏幕观感),视觉调试自闭环不再依赖肉眼 - KeyLight 增加 intensity slider(0-20 运行时可调)
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@@ -116,7 +116,7 @@ namespace Engine::Passes
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.setBorderColor(vk::BorderColor::eFloatOpaqueWhite)
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.setUnnormalizedCoordinates(VK_FALSE)
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.setCompareEnable(VK_TRUE)
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.setCompareOp(vk::CompareOp::eLess);
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.setCompareOp(vk::CompareOp::eGreater); // 【诊断】方向对照
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shadowSampler = device.GetDevice().createSampler(shadowSamplerInfo);
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// per-slot 描述符分配 + Set0 绑定(buffer 句柄全程稳定,不用重绑)
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