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--- appwiki:unreal [2023/07/10 08:19] – [Common Task in Unreal] ying
+++ appwiki:unreal [2024/01/25 10:23] (current) – [Movie Render Queue in Detail] ying
@@ Line 1: / Line 1: @@
+====== Reading ======
+  * Parallax Occlusion Mapping
+    * https://www.youtube.com/watch?v=PqMZl7wFX7I
 ====== Unreal 5 Basic Workflow ======
@@ Line 126: / Line 131: @@
   - do your code, in VS top bar, develop editor, and local debug build, (if fail, close unreal and re-run local debug, it will launch unreal automatically)
   - Ctrl+Alt+F11 to live reload changes from your code to unreal
+  - (extra note) if you start project as blueprint project, you can use Tool menu > add C++ Class to add C++ code into your project
+    - then it will pop Visual Studio, and you need to close unreal, and start unreal like above with visual studio
+    - also the C++ class folder will show up in content browser
+ref: Getting into C++ with Unreal Engine
+  * p1: https://www.youtube.com/watch?v=dS5AUaYFcdw
+  * p2: https://www.youtube.com/watch?v=_GQwpppMgiI
 ====== Unreal Engine 5 Problem and Solution ======
@@ Line 133: / Line 145: @@
   * Texture Streaming Pool Fix
     * in cmd, type (8000 is your MB of your GPU memory size) <code>r.Streaming.PoolSize 8000</code>
+  * video memory has been exhausted:
+    * some features improving the visual quality can increase video ram usage, like
+      * nanite - real-time high detailed geo render
+      * lumen global illumination system
+      * temporal upscaling features for more details in realtime
+      * texture streaming and texture quality
+      * scene layer in editor
   * temporily disable nanite in project
@@ Line 154: / Line 173: @@
   - create CineCameraActor, (for render and level sequencer use)
     - set filmback, lens focal length
-  - clip icon > create level sequence (now you have a timeline)
+  - clip icon > create level sequence (now you have a timeline) AS_main_animation
   - add main_cine_cam actor from outliner into timeline
   - animate the camera
@@ Line 164: / Line 183: @@
 ref: https://www.youtube.com/watch?v=GHFq4Dj7sVs
+===== MRQ Problem and Solution =====
+  * sub-level is set to streamming and movie render queue is not rendering out sub-level.
+    * solution:
+      - in Sequencer window, add new Track > Level Visibility track
+      - once new Level Visibility track is there, click + icon to add Visible property layer
+      - right click on visible property layer > Edit Section > Level visibility tab - Level Names array
+        * click array + to add new level name slot, and put each sub-Level name in the scene, (yes, you have to manually type out each sub level names)
+        * then it should make render works
+===== Movie Render Queue in Detail =====
+  * ref:
+    * https://dev.epicgames.com/community/learning/courses/eER/unreal-engine-technical-guide-to-linear-content-creation-production/BbWJ/unreal-engine-rendering
+    * https://www.youtube.com/watch?v=SpMVNb4l0OI (This SIMPLE SETTING Saved My Renders)
+    * https://www.youtube.com/playlist?list=PLfPt9Zwz7HPnfX68-hqKP77as57NJZ8G0
+    * (path trace) Render better & faster with AI ! Unreal Engine 5 rendering tips: https://www.youtube.com/watch?v=zxW8rKgZJ3E
+  * Settings:
+    * anti-aliasing:
+      * spatial sample means sampling repeat at same time multiple times and merge
+        * good for static objects
+      * temporal sample means sampling at different time slice within a time interval multiple times and merge
+        * good for in-motion objects for motion blur
+      * total sampling = spatial samples x temporal samples, if total > 8, you need to disable AA checkbox below them, and use None for AA.
+      * console variables <code>
+r.AmbientOcclusion.Denoiser.TemporalAccumulation 0
+r.GlobalIllumination.Denoiser.TemporalAccumulation 0
+r.Reflections.Denoiser.TemporalAccumulation 0
+r.Shadow.Denoiser.TemporalAccumulation 0
+r.BloomQuality 5
+--fog
+r.VolumetricFog.GridSizeZ 256
+r.VolumetricFog.GridPixelSize 2
+r.VolumetricFog.TemporalReprojection 1
+--?
+r.DepthOfFieldQuality 4
+r.ScreenPercentage 125
+r.MotionBlurQuality 4
+r.ShadowQuality 5
+r.RayTracing.GlobalIllumination.ScreenPercentage 50
+Unreal Engine makes real-time ray tracing possible through the use of denoising techniques that may rely on temporal history.
+When using high-resolution tiling or when disabling Temporal anti-aliasing, you may need to adjust the following console variables for better results
+r.AmbientOcclusion.Denoiser.TemporalAccumulation 0
+r.GlobalIllumination.Denoiser.TemporalAccumulation 0
+r.Reflections.Denoiser.TemporalAccumulation 0
+r.Shadow.Denoiser.TemporalAccumulation 0
+Setting these variables to 0 will help the denoiser converge better without temporal history. You may also want to consider disabling the following Denoisers entirely if you have a high enough sample count (64+)
+r.AmbientOcclusion.Denoiser 0
+r.DiffuseIndirect.Denoiser 0
+r.Ray tracing.SkyLight.Denoiser 0
+r.Reflections.Denoiser 0
+r.Shadow.Denoiser 0
+</code>
+        * ref:
+          * https://docs.unrealengine.com/4.26/en-US/AnimatingObjects/Sequencer/Workflow/RenderAndExport/HighQualityMediaExport/
+  * settings related
+    * Project Setting: raytraced related
+    * Post process volumn: unbound and related setting
+    * ref:
+      * https://3dtotal.com/tutorials/t/introduction-to-ray-tracing-in-unreal-engine#article-ray-traced-ambient-occlusion
+      * raytrace: affects shadow, reflection, ambient
+      * path tracing:
 ====== Unreal Engine 5 to Unity Conversion (FBX method) ======