UE4 Ray Tracing 初探
Ray tracing (光跡追蹤) Ray tracing 官方介紹 UE4的Ray tracing(後簡稱RT),分為"Ray Tracer" & "Path Tracer"兩部分,Ray Tracer用於計算彈跳後光線渲染之最終像素顏色,Path Tracer作為其配套工具,漸進式生成"地面真實資訊參考" (Ground Truth),由於其公正客觀的特性,適合與ray tracing比較,便於美術與程式疊代修改參考。 System Requirements Operating System : Windows 10 RS5 (Build 1809) or later GPU : NVIDIA RTX and some GTX series cards with DXR support using the latest device drivers. [ detail ] Unreal Engine Version : 4.22 or Later Enabling DX12 and Ray Tracing Project Settings > Platforms >Windows > Default RHI = DirectX 12 Project Settings > Engine > Rendering > Ray Tracing = true Ray tracing priority [importance level] (效果與成本綜合考量) r.RayTracing.Reflections [4] r.RayTracing.Shadows [3] r.RayTracing.Translucency [3] r.RayTracing.GlobalIllumination [3] r.RayTracing.AmbientOcclusion [3] r.RayTracing.StochasticRectLight [2] r.RayTracing.SkyLight [2] r.RayTracing.InstancedStaticMeshes [1] r.RayTracing.Landscape...