Official Progressive GPU Lightmapper preview

I'm also getting the following error. Is this ever going to get resolved?

OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_MEM_OBJECT_ALLOCATION_FAILURE error executing CL_COMMAND_NDRANGE_KERNEL on GeForce GTX 1070 (Device 0).

 

So unstable. It bakes the scene now... but a hour later, or another day (no changes to the scene) and it wont bake anymore, instead saying its out of memory and switches to cpu.
1060 6GB.

 

I would like to additionally add that, while the RX 580 allowed me to lightmap and fix all of my problems that I have been having for the better part of a year, the RX 590 works equally well.

 

I have problem with GPU light mapper, I bought 5700 xt to replace my gtx 1060, but when using GPU mapper, it writes me in console:
OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_INVALID_KERNEL

So it fallbacks to CPU.

Anyone know, what can be problem?

 

What is needed on the Mac to enable the Radeon pro denoiser?
I filed a bug because I can't select it. Anyone on the Mac who can select it?

(1197256) Radeon pro denoiser is grayed out in GPU lightmapper

 

Keep up the good work guys, ever since we've updated to 2019.2 I've been enjoying the heck out of the GPU light mapper. It's not perfect but it does a pretty good job, looking forward to the upgrades coming in future updates.

 

@KEngelstoft just curious, any plans to add BentNormal baker?

 

Hi! i was having a lot the issu of fall back to CPU today and i changed to the 2019.3b12 and now i don't have any baking at all (along with the still persistent fallback to CPU error) it get stuck in the "preparing to bake" text and that's it, i can work and use unity, but just don't bake.

Is there an ETA to when the GPU will be stable? or out of preview?

Now it's not even falling back to CPU, just getting stuck in "preparing to bake"

Thanks!

 

Same here. Once the lightmapper failed, it than stucks at baking every next time you try to bake not matter what even when switching to CPU and then back to GPU unless you restart the engine.

 

I'm bit confused, you mean we can use the existing baked map directly and treat them as bent normal in shader?. Or doing another precompute to convert the maps into new bent normal texture?

 

"OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_MEM_OBJECT_ALLOCATION_FAILURE error..."

Unfortunately this issue has not been fixed in 2019.3
Light probes are still unusable with GPU baking.

 

Do the following adapters support progressive GPU lightmapper?
Nvidia Quadro RTX 8000
Nvidia Quadro RTX 6000

We want to build a PC that aims to bake lightmap only,
and need to make sure whether these adapters can work with progressive GPU lightmapper.
We're afraid of lacking VRAM.

Thanks,
Squall

 

Anyone else getting these beautiful Black square artifacts produced by having Optix filtering on or Filtering set to 'Auto'?

Reproduced on Unity 2020.1.0a14 at Case 1203538

 

Hi, I have been having a problem where using the CPU lightmapper I get the results I want but when I switch to using the GPU, it has a different undesirable result. As you can see from the screenshot below the directional light comes through the window and bounces from the floor, up onto the ceiling. However when switching to the GPU this does not happen. The indirect intensity is set to 1.4 and the mesh only has 1 material. I am using 2019.3.0f1. Is anyone else having problems like this?

 

Hi, yes the result is the same. The CPU and GPU still bake differently. I am using a 2060 Super. thanks

 

Hi, I have filed a bug report: Case 1206157
thanks

 

Can I ask some details about the Russian Roulette Start Bounce features?

From what I can gather, it enables terminating bounces early if it deems them to not really contribute much to the scene (kinda like inverse importance sampling? ), giving a speed boost.

That sounds fine, but the tooltip (and other info I can find), says that using the feature might increase noise, which means I'll need more rays, which means it'll become slower, meaning I'm probably losing whatever speed gains I got by using the feature?

Or does it make things so much faster that even with the bump in samples, it's probably still faster? (also I'm guessing it's highly scene dependent, but so far I'm having trouble imagining on what types of scenes it'll work better).

 

What sort of GPU would be optimal for this once it's out of preview? I assume NVidia? Quadro RTX8000?

 

I have a problem with the GPU lightmapper. The progress bar stucks at "Preparing Baking" forever and my scene glows like a nuclear explosion. Does this has something with Emissive materials? But my scene only uses realtime emissives.

 

Oooh need to see this in action, any specific detail that we need to prepare on the LOD meshes?

 

Awesome

 

How can I determine what are the highest settings that my GPU can bake with Unity?
I ran into an issue when I want to bake a rather small scene with a lightmap size of above 1024px but it aborts and switches to CPU lightmapper.
I have a RTX 2060.

OpenCL Error. Falling back to CPU lightmapper. Error callback from context: CL_MEM_OBJECT_ALLOCATION_FAILURE error executing CL_COMMAND_WRITE_BUFFER on GeForce RTX 2060 (Device 0).

And my device has two GPUs. How can I use that extra power for the lightmapper?

 

I'm using the latest Beta of 2019.3 and cannot switch just for Lightmapping.
But perhaps I could bake my scene with 2020.1 and transfer the lighting assets back to my 2019.3 version? Is lighting data asset compatible? I also use light probes.

I rather mean using two gpu for the lightmap baking procress. Cannot beliebe my new RTX is that slow for baking a small screen. Just hoped the new technology is more worth the price ...

 

I really hope Unity will use the full potentional of RTX cards soon, seeing all other creative applications supporting it mentioned in a Nvidia article. It read about up to 40% faster with the hardware raytracing and for Blender up to 4 times faster. So what do you think how much faster the Unity gpu lightmapper then will be?

I see video ram is an issue. When I tried to bake 2048px, I get that gpu baking cancelling right at the start. So then I tried to decrease the texel. That worked until just a small portion of the scene was not lightmapped and then it suddenly decides to fall back to cpu baking.
So can we have a toggle or information if the whole scene can be baked by gpu lightmapper with the resolution at once? I really hate to wait just to get an error just the last remaining minutes.

 

@KEngelstoft Hi. will the Light probe memory usage fix be backported to 2019.3?

 

@KEngelstoft Also, my project is failed to bake with NVIDIA Geforce 2080 (included lightprobes). So I will change my GPU to NVIDIA Titan RTX (24GB VRAM). Before upgrade, I want to know Titan RTX can be used for GPU lightmapper.

I used 2019.3 (and fixed 2019 cycle for final release maybe), light probe can be baked with large VRAM gpu? (it seems that 2019.3 has lightprobe memory issue but I want to know can I avoid it by using more VRAM).

 

Can somebody please tell me why I get that ugly glowing rectangle on my lightmap? That looks out of place and just wrong.

 

Thanks for clarification. My project already has single LightprobeGroup (but many light probes, about 10K~30K). Is this not affected from LightProbe gpu lightmapper issue?