Octane not rendering Tweet

[Dev_Ethan]

Re-downloaded Octane after formatting computer and updating to 4.25.

Problem... Trying to render stops after the first pass, won't move on to the next passes and also shows grey screen.
https://i.gyazo.com/eb45a872816aa3c7ff1 ... 69267a.mp4

cheers,

[sheralondunn]

G'Day There,

I came across this post as I too am having the same issue. However in regards to your issue couple of questions I do have. Are you using the free Prime version of Octane with UE4 or have you purchased a license? Reason I ask is I've done a fair amount of troubleshooting on my end with my issue and currently I'm using the free Prime version. Over the weekend I purchased a license (which I'm waiting to hear back from staff on as the UE4 plugin isn't anywhere to be seen but that's a different issue) to see if there is limitation on the free versus the licensed plugin and how many materials it will accept. I found if I put one material on everything, such as I popped just a Blinn grey shader on everything it renders perfectly. I then slowly one by one start to add the proper materials so I added the wooden flooring and it was fine, rendered beautifully. So then I added the materials to all the items in the house I'm doing, which is quite a few, and that's when it stops rendering and does exactly what this post is asking about. So in regards to your issue how many materials do you have on your items in your scene and wondering if there's a limit especially with the free Prime version even though it doesn't say that's a limitation.

Thanks
Regards
Shez

[ChrisHekman]

G'Day There,

I came across this post as I too am having the same issue. However in regards to your issue couple of questions I do have. Are you using the free Prime version of Octane with UE4 or have you purchased a license? Reason I ask is I've done a fair amount of troubleshooting on my end with my issue and currently I'm using the free Prime version. Over the weekend I purchased a license (which I'm waiting to hear back from staff on as the UE4 plugin isn't anywhere to be seen but that's a different issue) to see if there is limitation on the free versus the licensed plugin and how many materials it will accept. I found if I put one material on everything, such as I popped just a Blinn grey shader on everything it renders perfectly. I then slowly one by one start to add the proper materials so I added the wooden flooring and it was fine, rendered beautifully. So then I added the materials to all the items in the house I'm doing, which is quite a few, and that's when it stops rendering and does exactly what this post is asking about. So in regards to your issue how many materials do you have on your items in your scene and wondering if there's a limit especially with the free Prime version even though it doesn't say that's a limitation.

Thanks
Regards
Shez

Would it be possible for you to share your scene with me so I can figure out what is going wrong?

[sheralondunn]

G'Day Chris,

No dramas. I will zip it up and fire it across after work today.

Thanks
Regards
Shez

[sheralondunn]

Hi Chris,
Ok so here is what I have done since I started to find out what’s going on with rendering in UE4 using Octane.
I downloaded the non-free version of Octane Plugin that you kindly linked me to (thankyou by the way). I removed the free version by just deleting the plugin folder from the UE4 Engine installer location. I then ran the installer of the Octane Enterprise Plugin (that’s the subscription I have Enterprise) which installed successfully into UE4 Engine. Unless there are any parts that need to be removed from the registry I haven’t checked and haven’t removed but I got it installed none the less.
So I go into one of my projects I’m using one of the homes we have from a past project (minus interior decorating) and have placed cameras around, which you will see. Now we do render out as panos so I have named some of the cameras as a pano cam and one I’ve popped in the scene as just a still shot style camera, named as such as well. I then created a blinn style material that’s just a light grey, popped it on everything and it renders fine. I then through the details panel removed the blinn off the flooring to reveal the proper material which is a wooden floor mostly, some areas are carpet, tiles, and concrete. This, renders fine. So I then went through and revealed all materials for all objects and this is where it just hangs on the screen you saw earlier which is also the same screen shot the other gentleman has put up who initially reported the issue I found in the forum. I haven’t had a chance, yet, to reveal the materials one by one to see when it decides to not render and just hang on the grey screen but once I reveal all materials it just, yeah hangs.
Now some other issues I have found earlier once I installed the full version was I can no longer pick a camera to render from nor a light source. It won’t let me pick the source, nor pick it from the list. I also have issues with resolution. I go to change it and it just reverts to 1916 x 1013 which is annoying when I need to test the renders at 8K, even when I try and render at 1080p resolution it just switches back to 1916 x 1013.
The last thing I’ve also noticed so far, and this was happening with the Prime version too, when I close down my project I get a UE4 Crash scene. I will also include the Log file for this as there may be some clues in there for your perusal.
I know it’s not my system specs as the system I myself has built can more than handle it. Under the hood I’m using an AMD Ryzen Threadripper 16 Core processor with 32 logical cores, 128GB RAM, and NVidia GeForce RTX 2080 with 8GB Memory. I do a lot of Ray Tracing in the engine which the system can handle so know it’s not that. Not to mention I have 5 internal HDD’s and the one I primarily use ha 2TB free of space so caching anything isn’t an issue.
It’s a little frustrating as I know Octane will be just a massive benefit to the company I work for. I am the Lead Technical Artist/Programmer for an Arch Viz company and currently updating and improving the pipeline so projects can be done faster, and more accurate and we do deal with photo realistic Arch Viz from small to massive dwellings both Residential and Commercial, so being able to pump this out in Octane would be such beneficial which is why I’m determined to get it to work. I’m also an accredited UE4 Specialist/Trainer and been using the engine since, gosh Unreal 2, so the engine is certainly not new to me.
Any of your assistance would be very grateful and I will look forward to hearing from you. Sorry this is a novel but I’m a stickler for giving as much information as possible in order to troubleshoot properly.
Oh and please excuse the name of the project, I was erm…kinda getting frustrated with it so created a new project and kinda gave it an erm…..choice name. So I do apologise for that.
Thanks and hope to hear any findings soon.

Link to project: Please if you haven't grabbed it by now let me know.

Regards
Shez
Regards
Shez

[EvolverInteractive]

the resolution issue is because the "match to screen size is on in the view port" turn that off. As for the materials most of them are supported. For the camera issues where you can't select on then the other. Create a new RenderTarget and make sure your Octane Target and cameras are on the same level.

That was exactly it. Your directional light isn't on the same level of the RenderTarget. Also with that graphics card you can NOT do 8k with denoise. Change your Kernel to Path tracing and the glass will clean up better, but that's it. Everything renders just fine. I tested it myself.

Lastly get rid of the sky dome, it is a static mesh dome around the scene, making it a interior shot, inside an interior.

[sheralondunn]

Hi EvolverInteractive,

I'm very new to using Octane with UE4 although I've done traditional rendering for years. So what you are saying is everything needs to be on the same level? If this is true then this won't be able to be used in our Pipeline.

There must have been things ticked on in places I'm still exploring so will give that a shot. I know I had created a new render target when I was doing my testing if it didn't comply but it still wouldn't do what I asked it to. As for the the camera I had no troubles selecting a camera when I was using the Prime version so was strange when I couldn't for this likewise with selecting the directional light. I'll give it another shot. Now when you rendered it did you have the correct materials on each of the meshes and not just have the floor with the flooring and the rest the grey shader? If all the materials were on how long did it take for it to even start rendering for you?

Thanking you
Regards
Shez

[EvolverInteractive]

1. No I did not say everything needs to be in the same level. Just the Environment and Rendertarget.
2. Your materials work fine but all the surfaces have white on them.
3. It renders nearly instantly for me.

[sheralondunn]

Hey EvolverInteractive,

Thanks heaps for getting back to me. Thanks to your advise I am now able to pick a camera and the directional light. However yes if you start to reveal the real textures/materials you will see it stops. I started to put back the original materials (simply start to clear each mesh bit by bit in the details panel as the original materials will start to show) and I found after I think it was the 5th or 6th asset it stopped rendering. Just did what it does when trying to render everything with proper materials. It's a massive problem I'm trying to troubleshoot right now.

Regards
Shez

[EvolverInteractive]

I don't have the same issue that you do. I don't have the time to go through your material setup for you master material. Mine is more complex and I have no issue. Turn off auto displacement and reduce the number of switches you use in the master material. Make a video of your issue because this back and forth is not showing what you are doing. If it stops updating after a few material swaps, it is probably your setting and you are running out of memory.