Unreal Engine 4-5 - Groom Plugin Alembic Hair: Q&A

UPDATED Feb 15, 2023

September 1, 2021 - Epic Games stopped answering my questions because they have concentrated all their efforts on creating Unreal Engine 5, so please post new questions here - https://dev.epicgames.com/community/ - There they promised to answer... And I'm closing this project...

But if I find answers to any questions myself or Charles(Epic Games) helped me sometimes, I will of course add the answers here.

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ANSWERED (Updated June 5, 2024)


  1. UE4 cache to Sequencer.
  2. Binding to skeletal mesh causes precision issues(brows/eyelashes).
  3. Maximum hair count for fur/hair in 4.26
  4. Flickering in UE 4.24
  5. Wrong Axis in UE 4.24
  6. Hair for Fur
  7. Hair in Games
  8. Debug Mode
  9. Interaction with a hat
  10. DOF & Motion blur issue
  11. Issue with Scale X = -1
  12. How to improve hair cards render quality?
  13. Possibility to attach groom to animated alembic.
  14. Houdini Alembic Hair to Unreal Engine
  15. Binding to skeletal mesh causes precision issues. 
  16. Exporting from Xgen to Unreal with Root UVs. Script question
  17. Xgen baseColor per strands/vertices question. 
  18. Very thin (vellus) hair suffers from artifacts.
  19. External hair movement cache into UE4
  20. Comb hair inside Unreal Engine ( video example attached)
  21. Simulating Liquid-Hair Interactions (video example attached)
  22. 'Use Hair Raytracing geometry' question
  23. Melanin + Albedo + Custom Dye for Roots and Tips
  24. Imported fur with a little gap
  25. How to export Xgen with alembic cmd scripts?
  26. Lighting and Roughness issues. How to improve?
  27. Interaction with Wind.
  28. Too many temporal samples for the given shutter angle/tick rate combination...
  29. Slow Import (about 1h)
  30. Simulation settings for cinematic quality
  31. Crazy shadow flickering on Render(video with 64 and 128 samples)
  32. Render glitches with a new Movie Render+AA
  33. Less blurry DoF
  34. How to optimize the viewport?
  35. Opacity Map Issue
  36. CVars for raytracing samples in light settings?
  37. ScreenSize/Lod info in Viewport
  38. MetaHuman + HeadShot?
  39. Ornatrix 3ds Max UV Fix
  40. Render Speed and Sampling
  41. Simulation for different parts
  42. 1st Broken Frame
  43. Physics not working for Groom Hair on Linux 4.26
  44. Raytracing Reflections limitation in-camera preview
  45. Strange Shadow Spots
  46. Optimize a hair shader and lighting for real-time (games)
  47. All CVars for cinematic quality with raytracing
  48. Issue with hair outline, looks like a bad mask in Photoshop.
  49. UE5 crashes on windows 11 - D3D issue (GPU CRASH)
  50. UV FIX and export from Ornatrix 3ds max
  51. Limits for creating fur in Unreal 5 | How to solve?
  52. Hair Shading Artifacts in Unreal 5. How to fix?
  53. Hair Simulation with rubber
  54. [Strand Length and CV Points] UE 5.2 vs 5.3
  55. UE 5.4 - Hair Rendering: Strange Shadow Stripes and Cinematic vs Epic rendering settings




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VIDEO PLAYLIST


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SPECIAL THANKS

Special thanks to Epic Games, all my InfoPartners and these people... Without them, all this would not have happened:

Константин Харитонов - https://www.facebook.com/konstatin.kharitonov
Алексей Савченко - https://www.youtube.com/user/Giraffe404
Олеся Примахина - https://www.facebook.com/olesyapri
Андрей Дронин - https://www.facebook.com/andrej.dronin
Стас Старых - https://www.facebook.com/stanislav.starykh
ТРИ СЕСТРЫ - https://www.youtube.com/channel/UCL4bKVqGtBZtcGkBsuxwKJg
DREIA
GreatWhiteShark
Leonhard
Charles(Epic Games)

Whoever I forgot, remind me in a personal message - I will add.

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