This is great, I’ve gotten out 4 scenes so far with Unreal Studio/Lightmass GPU rather than 1 in the same time!
Having a render farm based currency would be really really cool.
Imagine being able to have your GPU/CPU “mine” or render farm over night and earn credits. Later that day if you need to bake a level, you could have hundreds of GPUs render it out at once using your render farm credits. Also have the currency available for purchase so you can take advanced of it without farming out your hardware.
My point was cryptocurrency was boom and bust and a lot of people invested heavily in high end video cards which they’re now offloading for cheap, which is a good thing for us.
Does this load the whole scene into GPU memory?
Yes. Currently, no plan on out-of-core raytracing
I’ve now tried out the GPU Lightmass, and I must say I’m VERY impressed. This is going into our workflow immediately =D
Oh my god… I can’t even count the number of whole nights spent doing one bake at a time, trying to debug that scene and now: 3 minutes… Mind. Blown. 
So what is actual memory usage? Vertices + indices + lightmass materials baked to small textures which size is configured from lightmass.ini?
Maybe future can use Gpu shadercompile ??
This is sick! Awesome work
Are they any comments from Epics site about this whole GPU lightmass topic ?
The only thing Epic said was it wouldn’t be easy to implement.
Just great! Keep it up!
So one talented user “” has implemented a working GPU lightmass baker into UE4 and all epic has said about this… it wouldn’t be easy to implement ?
Thats kinda a disappointing statement from epic, i have to say.
Great job , do you have a tip jar? Here is a scene rendered in GPU Lightmass in 33 minutes; Production quality with quality turned up took 2 hours on a 6700K.
GPU Lightmass (4.19.1) causes some problems with this scene ( dark upper area and some sparks on the ceiling ):
https://forums.unrealengine.com/filedata/fetch?filedataid=135603&type=thumb
Below the reference CPU baked (4.18.3):
https://forums.unrealengine.com/filedata/fetch?filedataid=135604&type=thumb
Hello, I was so excited reading this topic, I have downloaded Dropbox hi-quality and placed it to C:\Program files\ Epic \ UE 4.19 \ Engine and replaced the files, then I’ve opened my scene and tried to bake it, but once its completed BVH it’s giving these errors. I started clean with full restarting PC, on Nvidia 1080, Windows 10. 32GB Ram
P.S. My TDR was set to 60 for Substance Painter, I also do not have D:\gpulightmass folder and never had it. The only thing that broke is the plugin C4DtoUE4, which broke all materials, but I did not use them because all mats in the level were replaced to UE4 mats.
P.P.S: I do not have any unique lights, only regular lights with IES set as Static. Skylight and few lightportals. I did not use any Vray or Unreal Studio. Only the plugin, it shows the errors with mats, I click Ok and usually worked, but not in this case.
…I had crashes with only one scene having non “standard” lights in it… (vray scene, Unreal Studio with converted lights!)
@Muchasty are you using planes as walls with 2 sided material?
tim sweeney
Please hire “” in your company
he can improve the lighting quality for us
for my scene
cpu render time 6 hour - i3 4130
gpu render time 18 minute - gtx 1060 :eek::eek::eek:
my gpu is nvidia T but why this gpu renderer doesnt support amd ?
ocrane is gpu renderer and support amd - also blender cycles !