VRAY to UE4 Workflow.

Bletzkarn

I'm creating some models in 3DSMAX vray that I want to be able to transfer to UE4 at a later time. However I understand the requirement for vray and UE4 are different.

UE4 needs a lightmap UV, which I assume means I need to be correctly assigning UV's as I'm modelling? I also assume I will need a high poly / low poly workflow.

Obscura

You don't necessarily need hp to lp workflow, that always depends on the requirements and target audience. But yes, you need a secondary uv channel for lightmapping, and if you would want to get good lighting bakes, they need to be decent.

musashidan

Vray uses a different GGX shading model to UE4. If you mean getting your Vray scene into UE4 and have it 1:1. If you're just talking about bringing a scene set up for offline rendering into a real-time environment like UE4 then it completely depends on what you're doing.

This image is very exciting though. Maybe quite a while away but great potential. Chaosgroup don't f##k about and there's no dev I'd rather see developing future GI render tech for UE4 than Vlado.

Eric Chadwick

Unreal's Datasmith beta was just announced at SIGGRAPH. Looks like this will be your best bet, once it comes out of beta.
https://www.unrealengine.com/en-US/beta

NoRank

Eric Chadwick said:

Unreal's Datasmith beta was just announced at SIGGRAPH. Looks like this will be your best bet, once it comes out of beta.
https://www.unrealengine.com/en-US/beta

Wow this is totally good news, hope their auto generate lightmaps does a good job. By god how I hate to get those High or mid poly models made by people who couldn't care less about clean topology on their assets.

Bletzkarn

Wow, very exciting stuff. I would like to one day have Unreal as my complete visualisation package however I understand VRAY is not going anywhere soon. I suppose the main challenges of the workflow at the moment are ensuring models are currently made and UV'd and transferring VRAY materials into Unreal materials.