df4871a49b721a73dfeb672e00249c2c87c752f7
用户自主改进批次: - 透明窗口:GLFW_TRANSPARENT_FRAMEBUFFER + 窗口 opacity 0.5, swapchain composite alpha 按能力自适应(Opaque/Pre/PostMultiplied), Forward 清屏 alpha=0,tonemap 透传 HDR alpha——物体实体、背景透明 - 退出确认:Window 挂 WindowCloseCallback 发事件,App 侧 OnWindowClose 置确认标记,OnRenderOverlay 弹 ImGui 确认框后 Close(); 主循环退出条件改为 m_Running(close 事件驱动) - ImGui 总开关:` 键切换 ImGuiLayer::SetEnabled,禁用时跳过 NewFrame/OnRenderOverlay/BuildDrawData 整段 - 帧率控制简化:去掉 LimitFps 开关,非 vsync 时恒按 target 限帧 (默认 60,可调 ≥24);m_VSync 默认 false(Mailbox 不限速) - 清理:Model.cpp const 修正,swapchain 日志带 present mode, GPU 遥测暂时注释 验证:0 error 0 warning,composite alpha 实测选 PreMultiplied(0x2), present=Mailbox
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