import result into Unreal Engine

[RichardBaoRepo]

hi, I am acutally quite confused with which one is the final result to be imported into Unreal. since i am new to hair rendering, i appolgize if i ask any stupid question.
According to the folder names, i suppose the strands_reconstruction folder is where the strand file locate, but in that folder, there is only a stage2 folder, and inside it, there is only a cfg_args and a checkpoints folder, which include some .pth files.

another possible location is under /curve_reconstruction/stage3/strands, there is a 10000_strands.ply. this is most likely to be the final result? but i searched on google,and i did not find any strand based hair rendering doc that use .ply file..
I am not sure if it's the reason that i am not familiar with strand file usage or is it because something wrong happended during the training so i did not get the correct result. any suggestions would be appreciate~ thanks in advance

[RichardBaoRepo]

According to Unreal Engine Hair Simulation and Rendering Quick Start Guide the hair strand file should be Alembic format, but the only strand file we got from the output is .ply format. I tried converting ply to Alembic but failed to import into Unreal

[Vanessik]

Hey @RichardBaoRepo, please check upload ply into Unreal

[xlostpanda]

@Vanessik any update? thanks

[zhulongcc]

Hey @RichardBaoRepo, please check upload ply into Unreal

Hi, thanks for your reply. I used 'export_for_unreal.py' and transfered the hair pointcloud to a ‘.abc' file. But when I tried to import this .abc file to UE5, it shows not 'Groom Import Options'. do you know how to solve it? any suggestions would be appreciate, thanks

[RichardBaoRepo]

Hey @RichardBaoRepo, please check upload ply into Unreal

Hi, thanks for your reply. I used 'export_for_unreal.py' and transfered the hair pointcloud to a ‘.abc' file. But when I tried to import this .abc file to UE5, it shows not 'Groom Import Options'. do you know how to solve it? any suggestions would be appreciate, thanks

Sorry it's been long since last time checking this project. i cannot reacll the details right now. but try check this document https://dev.epicgames.com/documentation/en-us/unreal-engine/hair-simulation-and-rendering-quick-start-guide-in-unreal-engine?application_version=5.3, i think it could help

[zhulongcc]

Hey @RichardBaoRepo, please check upload ply into Unreal

Hi, thanks for your reply. I used 'export_for_unreal.py' and transfered the hair pointcloud to a ‘.abc' file. But when I tried to import this .abc file to UE5, it shows not 'Groom Import Options'. do you know how to solve it? any suggestions would be appreciate, thanks

Sorry it's been long since last time checking this project. i cannot reacll the details right now. but try check this document https://dev.epicgames.com/documentation/en-us/unreal-engine/hair-simulation-and-rendering-quick-start-guide-in-unreal-engine?application_version=5.3, i think it could help

Thanks very much for your reply. Did you successfully import the hair '.ply' file into UE5? I tried importing the '.abc' file following the documentation, but the 'groom' property seems to be missing now.

Then I imported the '.abc' file into UE5 using the options shown in the image, but unfortunately, it only appeared as a small cube.

And have you manually converted the hair '.ply' file using Blender? Because I noticed the 'export_for_unreal.py' script relies on Blender's bpy module.

Hope and appreciate for your reply~

[RichardBaoRepo]

Hey @RichardBaoRepo, please check upload ply into Unreal

Hi, thanks for your reply. I used 'export_for_unreal.py' and transfered the hair pointcloud to a ‘.abc' file. But when I tried to import this .abc file to UE5, it shows not 'Groom Import Options'. do you know how to solve it? any suggestions would be appreciate, thanks

Sorry it's been long since last time checking this project. i cannot reacll the details right now. but try check this document https://dev.epicgames.com/documentation/en-us/unreal-engine/hair-simulation-and-rendering-quick-start-guide-in-unreal-engine?application_version=5.3, i think it could help

Thanks very much for your reply. Did you successfully import the hair '.ply' file into UE5? I tried importing the '.abc' file following the documentation, but the 'groom' property seems to be missing now.

Then I imported the '.abc' file into UE5 using the options shown in the image, but unfortunately, it only appeared as a small cube.

And have you manually converted the hair '.ply' file using Blender? Because I noticed the 'export_for_unreal.py' script relies on Blender's bpy module.

Hope and appreciate for your reply~

Yes, i did import it successfully(but i do not remember the details if i use .ply or .abc or even someother files), i do have it documented, but i think i lost some screenshots where the details may resides... here is the link https://rowan-veil-c97.notion.site/Gaussian-Haircut-17b8055b669b801d91d3fc6d1aa3698b

[zhulongcc]

Hey @RichardBaoRepo, please check upload ply into Unreal

Hi, thanks for your reply. I used 'export_for_unreal.py' and transfered the hair pointcloud to a ‘.abc' file. But when I tried to import this .abc file to UE5, it shows not 'Groom Import Options'. do you know how to solve it? any suggestions would be appreciate, thanks

Sorry it's been long since last time checking this project. i cannot reacll the details right now. but try check this document https://dev.epicgames.com/documentation/en-us/unreal-engine/hair-simulation-and-rendering-quick-start-guide-in-unreal-engine?application_version=5.3, i think it could help

Thanks very much for your reply. Did you successfully import the hair '.ply' file into UE5? I tried importing the '.abc' file following the documentation, but the 'groom' property seems to be missing now.
Then I imported the '.abc' file into UE5 using the options shown in the image, but unfortunately, it only appeared as a small cube.
And have you manually converted the hair '.ply' file using Blender? Because I noticed the 'export_for_unreal.py' script relies on Blender's bpy module.
Hope and appreciate for your reply~

Yes, i did import it successfully(but i do not remember the details if i use .ply or .abc or even someother files), i do have it documented, but i think i lost some screenshots where the details may resides... here is the link https://rowan-veil-c97.notion.site/Gaussian-Haircut-17b8055b669b801d91d3fc6d1aa3698b

非常感谢老哥的解答~

我换了低版本的blender和UE5，现在导入成功了：

效果肉眼看上去还可以，但也存在你文档中提到的问题，尤其是颅顶匹配差的问题比较突出。颅顶位姿可能还需要手动调一下，还原风格上跟GT有差异，勉强可接受。

ps: 最想吐槽的是这环境配置太逆天了#😵‍💫

[RichardBaoRepo]

Hey @RichardBaoRepo, please check upload ply into Unreal

Hi, thanks for your reply. I used 'export_for_unreal.py' and transfered the hair pointcloud to a ‘.abc' file. But when I tried to import this .abc file to UE5, it shows not 'Groom Import Options'. do you know how to solve it? any suggestions would be appreciate, thanks

Sorry it's been long since last time checking this project. i cannot reacll the details right now. but try check this document https://dev.epicgames.com/documentation/en-us/unreal-engine/hair-simulation-and-rendering-quick-start-guide-in-unreal-engine?application_version=5.3, i think it could help

Thanks very much for your reply. Did you successfully import the hair '.ply' file into UE5? I tried importing the '.abc' file following the documentation, but the 'groom' property seems to be missing now.
Then I imported the '.abc' file into UE5 using the options shown in the image, but unfortunately, it only appeared as a small cube.
And have you manually converted the hair '.ply' file using Blender? Because I noticed the 'export_for_unreal.py' script relies on Blender's bpy module.
Hope and appreciate for your reply~

Yes, i did import it successfully(but i do not remember the details if i use .ply or .abc or even someother files), i do have it documented, but i think i lost some screenshots where the details may resides... here is the link https://rowan-veil-c97.notion.site/Gaussian-Haircut-17b8055b669b801d91d3fc6d1aa3698b

非常感谢老哥的解答~

我换了低版本的blender和UE5，现在导入成功了：

效果肉眼看上去还可以，但也存在你文档中提到的问题，尤其是颅顶匹配差的问题比较突出。颅顶位姿可能还需要手动调一下，还原风格上跟GT有差异，勉强可接受。

ps: 最想吐槽的是这环境配置太逆天了#😵‍💫

恭喜，确实很恶心，已无力吐槽。而且除了demo的效果 我自己找的视频测试的都一般 基本用不了。