How to Make Unreal Engine 4 Render Lighting Faster! - UE4 GPU Lightmass Tutorial

In this free tutorial we will go over how to make your light bake renders 100x times faster thanks to the NEW GPU Lightmass. We can now bake global illumination on the GPU instead of the CPU and make full use of modern graphic cards drastically increasing our render time. Only works on 4.26.

Signup for the Unreal Sensei Newsletter:

The Unreal Masterclass:

Timestamps
0:00 - Intro
0:52 - Activate GPU Lightmass
6:52 - Differences from CPU Lightmass
9:14 - Settings
11:18 - Outro

Follow Me -

[UnrealSensei]

Channel Update: There will be no new videos for two months as we wait for the UE5 beta! Once the beta is released you can expect a barrage of tutorials.

[CinematographyDatabase]

BIG Dave2D vibes! You love to see it 🍻

[aashay]

Glad to have you back Sensei :) Show us the way

[samuelmoser]

Thanks for the great Tutorials you make. I am really interested in Unreal Engine. Especially when I am making landscapes. So keep up with it.

[noalterna]

seriously the best ue4 channel on youtube.

[adamplechaty]

GPU lightmass works on Radeon cards as well. 6800 XT owner here.

[videohelper]

Yay you're back. Thanks for this another great, straight to the point and helpful tutorial. Looking forward to more of your future tutorials.

[gokupiske]

I am your loyal fan from Taiwan. You are my hero. Help a lot!

[fleshwere]

I never had this problem, why did I watch it all

[cwnbrce]

Great to see you back from hibernation :) Where have you been? We've been missing your wonderful, super made tutorials. Please make tutorial on VR - how to make menu, interact with your controllers on virtual buttons, how to browse files on disk etc :) Generally some VR project with virtual menu.

[rkanu.a]

pls make a detailed video on file management system as its very confusing to locate and find things....always have to struggle to find something and on material too...thanks and great video....loved it

[dcosta]

Yep, seen many tutorial, you’re the best

[brandonjacksoon]

Please more videos ))
Liked and subscribed! You are really cool professional and teacher! Thank you! Your level design tutorials AMAZING!!!

[danielastrom]

Exactly what i was looking for, great video!

[milosavpavlovic]

Keep it up I love you! Gave me a sense of direction with UE.

[KingKong]

Sensei!!! Love your tutorials! I'm planning on a Blender to Unreal Engine workflow, and I really need help with the following:

- After animating a scene in Blender (Meshes with Armatures and Shape Keys that are animated, camera shakes and zooms, maybe even cell-fractured surfaces), how can I export this whole scene to Unreal Engine 4 in order to render it out in realtime with even better graphics? This is undoubtedly my biggest thing I need help with. Nobody has made a video about this kind of workflow, and it would be a *HUGE* help to many people if you did! It could also complete your Blender/Unreal Engine 4 series since you've covered LEARNING Unreal Engine 4 for Blender users, but not a workflow for exporting Blender animations to UE4! There is an Unreal Tools plug-in for Blender which can really be useful!

- Playing transparent videos on planes like in Blender. This is something I struggle with finding anything about, especially considering how UE4 is a game engine, I thought it would be easier to find these things. I have a lot of ActionVFX footage I would like to use by just dropping it into the actual scene.

-Rendering an animation. This is one that is hard. I would personally love to render my stuff out in 4K-5K, which should be no problem in UE4 right? That and in-game color-grading would be awesome!

These are all of the stuff I *REALLY* need help with! Please give me a heads-up if you plan on making another video including this stuff, or even just have an answer you can leave in a comment! Thanks so much Sensei, love you and take care!

[spectator]

My GTX 970 doesn't support ray tracing, but I tried enabling these settings anyway, with the thought that things would either just run slow, or that UE4 would tell me if I was trying to use some hardware feature that wasn't available. No luck! Project wouldn't open. Had to hand-edit the .ini file for the project, but now World Composition is broken. Word of warning: if you try this, make a backup of your project first.

[comradejames]

I have that sofa irl from that scene haha

[burakaydn]

Ty for the content! Can you please make a smilar video for UE 5.1 for slower PC's.

[fallenhoenix]

Well... This changes things for me a good bit... Thank you! Great tut! You have a new sub!