Unreal Engine 4.22 Preview

[gameDNA]

Thank you Epic for your hard work!

[SoundlyAv]

Looks like the attenuation plug in setting for steam audio is gone, is there a new way of adjusting its reverb, occlusion and spatialization?

[anonymous_user_67fd1278]

Nice release, Looks like it has a lot of awesome stuff to test out. As for the animation system, The FBX importer imports all seperate objects as one skeletal mesh when skinned to one bone system. Is it possible to add an option to split out all the objects as speerate skeletal meshes (which only use the bones they’re influenced by) and can use the same animation asset?

[Leo_Rakes]

@Tim_Hobson

For those looking to get started with Ray Tracing. Here is what you need to do to enable it and use it:

• You’ll need to be on Windows 10 Build 1809 with an RTX-20XX series card and the latest drivers.

• Use the command line argument -dx12 with UE4Editor.exe (for example, creating a shortcut and adding the arg at the end of the file path in the properties)

• In the Project Settings, the following in this order:

• Support Compute Skincache

• Ray Tracing

• Restart the Editor

From this point, you should have ray tracing enabled for your project.

You’ll find a bunch of commands under *r.RayTracing. **for different techniques. Some of which are disabled by default (like translucency and RTGI since they are still actively being worked on).

To use the Reference Path Tracer, use the level viewport and select ** Show > Ray Tracing > Path Tracing**. You can find some cvars for it under ** r.PathTracing.***

Hello , will the updates to the rendering branch be added to the official version of 4.22? For example, support for Mask material and Foliage system, support for HISM rendering, support for Landscape, etc? If Mask and Foliage are not supported in version 4.22, doesn’t that mean that a lot of outdoor scenes can’t be used in DXR rendering? Existing DXR renders Mask with obvious shadow flicker, and cannot render Foliage system and Landscape.

And, in this preview, I didn’t find GI and translucent commands in the latest rendering branch? Maybe we can’t turn on GI and translucency in this version?

Finally, won’t DXR’s related functions be integrated into the editor UI in 4.22?

[aboubakrvfx]

Which are your card model, driver version and Windows build version?

turbo gtx 1070 ti
windows 10 1809

[mdhananjay]

Runtime Render Graph API

Could you please elaborate a little more on this?

[Juanmilanese]

Kinda unrelated, but this will be the update with the renderer rework a couple of Epic guys talked in conferences at the end of 2018? or thats still on the roadmap?

[Neil3D (Neil Fang)]

Good job! Can’t wait to check out the Render Graph!

[Spartan117]

When reading first half: wait this suppose to be a big update where is the big update?

Saw ray trace: Hell Yeahhhhhhhhhhhhhhhhhhhh!

[Chesire]

@Tim_Hobson

For those looking to get started with Ray Tracing. Here is what you need to do to enable it and use it:

You’ll find a bunch of commands under *r.RayTracing. **for different techniques. Some of which are disabled by default (like translucency and RTGI since they are still actively being worked on).

You sure about this ? Afaik the RTGI component was only recently added to the dev-rendering branch and has an engine version of 4.23. Is it supposed to be in 4.22 as well?

[Raziel]

This has an awesome list of real-time DXR ray-tracing features. Especially the real-time global illumination which was a feature that was promised in UE4 since day one. Too bad it ended up needing a whole new generation of 3D cards to finally achieve it properly…

Which brings me onto my next question: Obviously there are still a lot of users not on DXR capable hardware and I can’t therefore see pre-rendered ray-traced lightmaps going away any time soon. I feel there would be a huge benefit adding support for RTX-based ray-tracing to Unreal Lightmass so that we can use ray-tracing hardware to significantly reduce Lightmass rendering times.

Is this something that Epic has plans to implement?

[Anatol3d]

Thanks guys! You are geniuses!

[Vallynne]

I’m honestly quite surprised there isn’t a lot more emphasis being put on the addition of runtime autoinstancing. This change alone makes 4.22 extremely worth upgrading to. I’m seeing drawcalls drop by 20-40% in normal scenes, with some extreme examples like going from 2.5k to 900 drawcalls in a complicated scene with a lot of objects in one level and going from 20k to 2k drawcalls in a WIP large-scale city level which has a lot of building blueprints reusing multiple smaller static mesh components (unmerged and not instanced).

Ray tracing is nice and all, but this change affects a much bigger userbase. Free ms everyone! It was, of course, possible to get the similar results by instancing all repeating meshes using the merge tool manually, and it still doesn’t replace the need for manually merging meshes with numerous smaller unique parts (or spline meshes, for that matter, which aren’t being instanced in runtime with this change either). But still, a fantastic addition.

[Morningcoffee007]

Thanks Epic!! You made my day with this release. Epic indeed.

[Fish-1028]

I can’t execute play in UE4 editor, Editor is going crash when I push PLAY button. Does someone have the same issue?

[JonathanCDev (Jonathan Cortez)]

@CyberAlien

Hello, I have activated the DX12 + ray tracing with a 2070, it works, however there is no denoise AI to activate.
I have encountered several problems:

• Impossible to play in editor, crash ( under dx12).
• emissive material in reflextion only works in the reflection?
• Problem after a screenshot high resolution test, changes from 70fps to 2fps ( processing loop?)
• Possible to launch the play only in standelone mode and DXR not activated.

How did u get ray tracing to work? i made a shortcut of the UE4Editor.exe and added -dx12 and enabled raytracing in the rendering setting and restarted the project and still see the same thing when i add a rect light still the same. I have 2 RTX 2080 ti ._.

[DennG]

Great release. Thanks EPIC!
Since you got a full dedicated team to lighting now is there any roadmap you could share? I’m curious about the next features we can expect. Like Lightmap or voxel-based technolgies combined with raytracing to bake down some of the lighting data for performance reasons.

[AE_3DFX]

What about Lightmass modernizations?

[digitaly75]

@CyberAlien

• emissive material in reflextion only works in the reflection?

It seems fine to me…

[AE_3DFX]

And PhysX 4.0 when? PhysX 4 has solved lot of problems with bad acting physics.