Hello @all.

TLR
Can I build Houdini Engine from source that supports both Unreal Engine Versions or do I have to maintain 2 versions of my project in different Houdini-Versions to be able to use both Unreal Engine Releases with Houdini Engine?
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I am currently using H19.5.435, because it is the last version that supports HE4UnrealEngine 4.26, which is important for me because CarlaSim [github.com]is built on a fork of 4.26.

I would like to explore the possibilities of Unreal Engine 5.3.2 for visualization purposes, but then I would need to upgrade my Houdini version to at least H19.5.752 if I am correct. Unfortunately, the minimum supported version of Unreal Engine for this version of Houdini is 4.27.

I am not particularly keen to maintain 2 versions of my project due to the size and complexity.

Is there a way for me to build a Houdini Engine version from source either for H19.435 or for H19.5.752 that supports UE4.26 AND UE5.3.2?

I would be glad if someone could point me in the right direction or tell me this isn't possible.
I found this post on how to build HEngine for any version [www.sidefx.com], but as far as I understand it this is still depending on the correct release...

Thanks in advance and have a blessed 2024

Hi @all,

i guess I got it to work. I followed the post mentioned above and adjusted just two things.

I downloaded the latest release of Houdini Engine and edited the HoudiniEngineBuild.cs file to recognize my 19.5.435 version of Houdini. I changed the "string Houdini Version" to my current version and gave the correct HFSPath before building. So far I didn't encounter any issues while using my HDAs in Unreal Engine 5.3.2.

Hi, could you please share what "correct HFSPath" you pass in? That variable change gives me an error on build.
Plugin is partially works with corrected HAPI_Version.h, but crashes when inputing meshes to HDA.