PBRFusion 4

[hallow leaf]

PBRFusion 4 Released!

Available here https://huggingface.co/NightRaven109/PBRFusion4-RTXREMIX-Portable | Mirror https://drive.google.com/file/d/1wbI7UiVZyO5LaULC7vnx8N73atTuJ40D/view?usp=sharing

New Albedo generation
New Depth Model
Better Normals
Better Alpha Handling (Thanks @sinful kiln )

Released under Apache-2.0

Examples below of improvements
Input | v3 | v4

[hallow leaf]

Reserved

[finite stump]

LETS GOOOOOOOOO!!!!!!!!!!

[hallow leaf]

albedo

[candid sky]

Oh hell yes

[thin gorge]

YEAHHH

[worldly mirage]

Hm. Let's see

[dark veldt]

Looks great! Cant wait to try it

Its 36gb, chunky boy

[hard kelp]

w update, but daimn 36gb almost twice more then v3

gonna try new height model on walls with windows in l4d2

did upscale model get an update too tho?

[worldly mirage]

How many?!

I guess we'll see it tomorrow

[stuck venture]

Hey Nightraven, do you think it's possible to take your model and use it outside ComfyUI? I would like to use it as a PBR converter of Skyrim textures

[dark veldt]

@hallow leaf I'm having trouble unzipping it (with winrar and also with the windows tool). It seems something is corrupt, is that possible?

[candid sky]

I had no problem unzipping with 7zip

[hallow leaf]

I'm getting a problem too sometimes I'm rezipping it

[hallow leaf]

Yes this has a lot of extra stuff in it for upscaling and albedo generation.

I'm making a standalone version that will be just PBRFusion itself, I bet Claude or chatgpt can take in the custom node rn and make it work with a script the way you want it

[hallow leaf]

Different upscale model I think does better usually on lower res

[hallow leaf]

It's reuploading. When it's back in the repo try again sorry I think my winrar installation is corrupt or something

[dark veldt]

Thats alright! It works fine though so i dont think it had any effect, ill redownload it just in case

[worldly mirage]

DAMN IT

Spent hours

Why is it so large

I fucking hate huggingface

WHY CA I NOT RESUME IT???

Fucking piece of shit

Time to restart. Spent all day on this bullshit

[tribal ridge]

Same

Except I have 2TBs

[worldly mirage]

I am really REALLY pissed off right now

And before anyone tells me to use the cli

NO

Why do people not have mirror links to file hosts that aren't utter garbage

[stuck venture]

I got this error when unzipping it

0x800704B0

Then it continued the extraction. Not sure if it compromised it or not

[torn narwhal]

this has not moved for a very long time

am i doing something wrong?

[hallow leaf]

What GPU?

[hallow leaf]

What mirror would you recommend

[worldly mirage]

Anything that allows resuming

Like gdrive, I guess, though the file is too large

Is it really as compressed as it can get?

[hallow leaf]

I can put it on g drive,

Yes it's mostly the albedo model taking it up

Or you want the max zip compression level?

[worldly mirage]

What model are you using

Let it riiide

[hallow leaf]

Flux Klein 4b, yes there are quantizations, but it basically ruins the lora for the albedo

[worldly mirage]

Flux strikes again

[torn narwhal]

nvm i fixed it

THIS IS SO GOOD

[hallow leaf]

What was the problem/fix

@worldly mirage here is gdrive link https://drive.google.com/file/d/1R27Rw7ZRlLN1kJoys9KOwUcNNtrc-kaz/view?usp=sharing

[worldly mirage]

Thank you

[torn narwhal]

just restarting it

it seems like having rtx remix opened makes it stop

when i close rtx remix its fixed

[hallow leaf]

yeh unless you have like 24gb of vram and run it at the 1k setting theres not enough vram to go around

[hallow leaf]

did it open fine? could have just been a log file that was stuck open or something

[dusky shoal]

Anyone manage to put a workflow together with RTX remix ingestion nodes setup that they could share? I tried and am getting all kinds of comfyUI errors using the same remix nodes that worked with PBRfusion3.0..

[torn narwhal]

????

[dusky shoal]

This is the workflow I was using for PBRfusion 3 that worked with my 4080 (16gb vram) (could have the toolkit open, select a texture and run comfy workflow directly) as I was just using it for height, normal and roughness generation after already upscaling and replacing .dds file via Topaz gigapixel. Anyway to get this kind of setup with pbrfusion 4.0? I'm also confused that it generates a debaked albedo as well as a regular albedo/defuse..

[hallow leaf]

FYI the directx_normal toggle on the pbrfusion node is reversed: TRUE VALUE --> off = directx, on = opengl . As of right now by default its giving opengl normals

[hallow leaf]

i can look at remix intergation soon, but this version is heavier and may not let you run both on 16GB also they are actively working on that repo some\ things are broken
so you want,
Load image (Your gigapixel img) -> Albedo , Normal, Height, Roughness ?

if you set smart upscale caclulator to your res youre inputting (the gigapixel img) then ittl bypass diffuse upscale and do that

[main spindle]

How do you fill 3 TB😭😭

[worldly mirage]

Very carefully

Heh. It worked

[dark veldt]

Sorry for this noob question, but what is the difference between opengl and DirectX for the normal maps then? I just always use DirectX

[dark veldt]

Oh thats easy. I have like 6tb and mine is also filled up (I do music production)

[hallow leaf]

its a different format of the normal map what matters is when you ingest into remix you tell it what it is correctly, by default rn the workflows given give you opengl maps, so as long as you tell remix its a opengl map then youre good

[dark veldt]

Oh I didnt. I chose directx

But what will happen then? I didn't notice anything wrong I think

[hallow leaf]

then the normal were converted incorrectly, and thats my bad

[dark veldt]

So should I import the normals I made yesterday again but as opengl?

[hallow leaf]

yes

[dark veldt]

I worked on this yesterday but it looks fine to me. Maybe I'm missing something?

[hallow leaf]

probs not a huge deal but The geometry is relatively flat and symmetric all your surface detail that should pop out is pushing in, and vice versa, its not super noticable but it is wrong

[dark veldt]

Alright well I'll try it out today

[worldly mirage]

hm

[karmic ridge]

looks good!

[worldly walrus]

I extracted the files and it says I need the CCSRUpscale model, where does one obtain it and put it at?

Don't mind it saying its v3 i deleted that and it stil says it for v4

[worldly mirage]

Import the v4 workflow that's in the folder. Drag and drop

[random carbon]

random tip

when extracting with 7z, don't drag and drop if you're low on space on your C: drive. instead extract directly to the destination folder

when you drag and drop, it extracts to the temp folder on your C: drive first, then moves it to the destination folder. when you extract directly, it skips the temp folder step

[hallow leaf]

‼️
@here please apply this new patch it fixes the normal output bool being wrong, and i realized that the upscaler and albedo subflows had wrong settings, should see better albedo and upscaling, use the new workflows

drag contents of zip next to run_nvidia_gpu and click yes to replace : by default the workflows output directx normals now

[worldly mirage]

@here doesn't work, btw

[hallow leaf]

@worldly mirage

[worldly mirage]

@hallow leaf

[worldly mirage]

@hallow leaf target res is 4k from 256

[hallow leaf]

read the note above target res node

workflow does a max of 4x

[worldly mirage]

ah

[hallow leaf]

can maybe unlock the upscale node, but it was by default locked to 4

[worldly mirage]

I used a version of the texture upscaled using gigapixel

Guh

Where's the normal map switch

[worldly mirage]

not bad especially with the albedo if you edit the prompt for flux

Basecolor, no shadows, flat lighting, keep color, old and dirty stone tiles large

[karmic ridge]

honestly that looks good

[candid sky]

Couldn't you add a CLIP interrogator or whatever that tries to describes any given texture

Idk if that would improve results

[worldly mirage]

Better describe it yourself. Many textures could end up looking like nothing when viewed on their own.

[dusky shoal]

So am I supposed to use the Albedo instead of the diffuse for the albedo map in remix toolkit? If so, not getting great results as it makes them look so washed out and loses almost all color

[dark veldt]

Yeah i feel the same way

[dusky shoal]

It does look almost right when loaded into the game though.. just needs a little more color and it would look really good. Any settings I could maybe play around with to adjust this?

[random carbon]

so the albedo was "debaked" to remove the baked in shadows and lighting, but it has the unfortunate side effect of shifting the colors

if you want to test how it could look, you could send me the two files and i'll do a color transfer on them

[dusky shoal]

oh wow that looks perfect, how did you do that?

[random carbon]

in chaiNNer

[dusky shoal]

looks much better, well guess I need to learn chaiNNer now lol, thanks so much!

[random carbon]

night should be able to integrate this into the workflow so it's automatic. but i'm not sure if a node like this exists in comfy yet

[hallow leaf]

i mean if we color match arent we just matching back the black too?

guess i could make a tuned one that doesnt transfer near black

[random carbon]

we're doing color transfer. so with any black that is in the output image from your debaking model, it will be made to look like the black levels in the input image

however, it doesn't add back the shadows and baked lighting to do this. it's simply transferring the colors, not the characteristics of the image

all of this baked lighting is still gone

the colors are just restored

[hallow leaf]

hmm it does do better then i thought it would ig i never tried it lol

@dusky shoal Use these new workflows it does that step now, thanks Kim

[dusky shoal]

Wow works great now, thanks!!

[dark veldt]

Great work guys! ♥️

[dark veldt]

@hallow leaf just wondering, why do you have a single image workflow when you can do a single image with the batch workflow too? is there a reason for that?

[dark veldt]

what is the roughness based on? how should it know when something should be reflective and how much?

[karmic ridge]

#1111273025657114654 message

[dark veldt]

no I get that but I was wondering how the tool knows how rough the input texture should be

[karmic ridge]

Oh. That is probably best left for NightRaven to explain

[worldly mirage]

It's a 0-1 float value.
0 means it's not rough. 1 means it's completely diffuse.

Roughness. How rough a thing is. The higher the value gets, the rougher the object will look.

Ah. I spent more than two seconds to think about your question.

[dark veldt]

okay

is that a setting i can change?

must be somewhere here right

intensity_blend?

nah thats not it

[worldly mirage]

You can edit it in post with a multiplication function in any editing software.

[karmic ridge]

is this about adjusting roughness values from the output results only or before any processing begins?

[sinful kiln]

@spare compass made a convenient tool for this, not sure if it is public though

[worldly mirage]

That guy can actually do things?

Neat!

[spare compass]

Sure is

[spare compass]

I can't in case you're wondering, that was Gemini

just pumped those RAM prices by another $300

https://tenor.com/view/a-heavy-cost-i-pay-it-gladly-sean-bean-equilibrium-gif-13368725658338248877

[worldly mirage]

Incredible (I do the same but with Claude)

[dusky shoal]

I had this same question when trying to get PBRfusion 3 to look good. This is what I ended up figuring out (and looks like it should work with PBRfusion 4 as well). Expand the "Image Filter Adjustments" node by clicking the grey circle and adjust the Contrast level to adjust how rough the roughness map will be. It's defaulted to 1.5 which makes most surfaces very matte, which seems to work okay for some wood and maybe stone but looks flat otherwise. If you lower this toward 1, it will make the dark areas of a texture appear more shiny. Now I've found that reversing this can sometimes yield better results (add a Invert Image node to the workflow and connect it between the "Image Filter Adjustment" and "Set_Roughness" nodes; this will now make dark areas matte and lighter areas shiny. So say you want to make a shiny porcelain tile wall or sink, you'd want to set roughness to 1 to 1.25 (1.25 will look practically wet from being so shiny). Hope this helps!

[hallow leaf]

there is no "model" doing roughness, that map is basically cheated on, and defaults to prefer more matte (rough) like Jon explained, if you want a less rough texture then you can do what he said above, or edit in post

[soft bloom]

What works surprisingly well is leveraging a VLM for image classification. Basically just assemble a table of roughness values for materials, have a VLM identify the material in the image, then assign an average roughness from that. If you use something like Gemini API or a model with multi-image support you can feed it two maps, what I normally do for general textures is give it a heightmap and the diffuse and have it assign roughness for the low, middle, and high parts of the texture based on the heightmap. This lets you get good roughness for stuff like a window with a wooden frame usually. I also have it determine heightmap magnitude so that a wooden floor doesn't end up with super deep cracks. I can dig around and see if I can turn my workflow for it into a custom node and then share the prompt I use.

Alternatively you can sort out textures by material using their names or just visually into different folders or something then use an imagemagick script or python to quickly adjust the roughnesses up or down. Depending on how well the textures are named it's pretty easy to just nab all the stone/wood/dirt textures by name to separate them.

Also for the color matching there's a bunch of custom nodes for it on comfyui, just search histogram match or color match. If you have the layer blend nodes you can color match it then apply it over the original texture using the color filter to avoide messing with luminosity.

[worldly mirage]

Or just... Post the workflow

[soft bloom]

It's a specific python script I use that depends on the exact filename conventions I'm using so it makes more sense to make a node

[hallow leaf]

can u share the script?

[soft bloom]

Here ya go, I used a different text concatenation node in the VLM subgraph bc I was working on it in my desktop comfyui, but if someone wants to fix it and repost it please do. The highpass numbers are basically just for getting more micro detail and variation into the roughness since going just from height is usually too uniform. All the values in the prompt are based around me making stuff for Morrowind, depending on what you're upscaling you may want to add more numbers to it or change stuff around. I usually add a lot of explanations for acronyms and abbreviations in common filenames for the game in the lower section but removed them for this.

Set up for gemini API but I'm sure it coulde easily be adapted for any model that takes two image inputs.

[hallow leaf]

thanks!

[sinful kiln]

ill definitely give this a shot, thanks Liam!

[soft bloom]

Let me know if it doesn't work I've only ever tested it with my existing ComfyUI so it might have issues with requirements or something

[undone zenith]

'

israel

[hallow leaf]

nvidia gpu?

also i left in a flag for 8GB that shouldnt be in there.. --reserve-vram 24 shouldnt be in there

[tribal ridge]

I use the 12GB option on mine

[edgy cedar]

What's --reserve-vram supposed to do? I've been running these last 2 days on a 3060TI 8GB, and I've had no VRAM issues if I stick to 1k textures

[hallow leaf]

Well that's good, I was using it to test lower vram it reserves vram for the os to use and comfy not to, but seems like it breaks through it if above

[tough mural]

Might have to try this out. Any benefits to having 32GB of RAM? I know the upscaling step has different ways of reducing VRAM usage but I’d wanna take advantage of the hardware if I can

[worldly mirage]

Unless you want to have other apps running. No.

[tough mural]

Damn

[hallow leaf]

can u pin top post here #1469532007997509733 message

@random carbon

[undone zenith]

@hallow leaf

i love you

so good

[hallow leaf]

https://tenor.com/view/random-random-citizen-megamind-citizen-super-hero-gif-5727130

[sinful kiln]

Seems I get subjectively better shadow removal when flux runs on a 1k input, just for Info

Vs. a 2k or 4k input

So I moved the flux node before the upscale node

[soft bloom]

I can upload a workflow at some point, not at my PC, but if you're familiar with photo editing frequency separation works well for this. Basically the flux operates at 1024 and then you transfer details from the 2k or 4k image after the basic lighting is turned to albedo. Not perfect but it's pretty good especially for 4k

There's nodes for it and everything so I can integrate it seamlessly into a workflow when I get the chance, if I haven't posted it in a couple days just ping me and I'll remember

Alternatively training a lora for sdxl on albedos might help for having it after flux

[young heart]

Comfy seems to crash after it gives me the roughness map

[meager oracle]

I've been trying this on projects and I am really enjoying the results!. It seems more consistent in upscaling texture from as low as 64x64 and being able to set a target upscale resolution and batch processing a ton of textures feels a lot easier. I also recommend doing what Jon said and putting the invert image node before roughness. This gives you two quick options for roughness: use the generated roughness map, where brighter parts of the diffuse map are more reflective, or use the height map, where darker parts are more reflective.

[hallow leaf]

Sounds like it's crashing on albedo generation then, what GPU and target resolution?

[tough mural]

Am I correct in assuming the process of PBRFusion will auto import everything into its own layer in the Remix project?

[hallow leaf]

No rn it's normal batch loader, working with Nvidia on there next toolkit comfyui integration for a more seamless experience

Hopefully done soon

It's way better then the old rest API nodes

[tough mural]

So currently there’s no direct way to go from batch processing to ingest to mod layer?

[hallow leaf]

Not right now

[dusky shoal]

I was able to get PBRfusion 4 to work with rest API with this editted workflow (for single image), though I'm only using it on textures I've already upscaled to 2048x2048 via topaz gigapixel so it's only using the workflow to generate the depth, normal, roughness, and albedo (though still not getting great results on very complex textures with the shadow debaking even with the color match.. seems to remove shadows from part of the image but then add shadows to other parts or sometimes just completely destroys the image) I still get the occasional error 500 from comfy but minimizing the toolkit and comfyui seems to help (pretty sure it's from my 16gb maxing out causing a connection issue as this happened with PBRfusion3 as well)

[young heart]

4070 super 12gb and i'm doing 1k

[dusky shoal]

seems to do an amazing job most of the time but oddly did a worse job with this brick wall compared to PBR3 (first image is pbr3, 2nd is bpr4) maybe the pbr4 one is actually more realistic to what solid brick wall would look like..

[meager oracle]

I've had to change height values, switching textures to PBR4,. I was going from values around 0.02 down to 0.005 so it might be worth checking textures and messing with the values.

[tough mural]

The second image is definitely more realistic. I like me some displacement shadowing but it’s definitely too strong in the first shot and at a glance it looks a little too soft around the edges of each brick

[undone zenith]

@hallow leaf

howto get a albedo with no lighting

https://tenor.com/view/baby-ironman-grey-ocean-grey-guray-suit-gif-17229195

[hallow leaf]

web demo here https://huggingface.co/spaces/NightRaven109/PBRFusion4AlbedoKlein

@undone zenith

[olive rover]

👀

[sinful kiln]

this is the output from the comfyui version using the 2k image, the shadow removal seems to work best with a 1k input though

same but with the input downscaled to 1k before going through the flux2 klein node (then upscaled to 2k)

just for easier comparison with original vs downscaled to 1k then shadow removal then upscale again version

[worldly mirage]

I wonder if qwen image edit can compare

[worldly mirage]

Yeah, no. Maybe it's a prompt thing

[warm sky]

by the way, a small suggestion, it'd be nice to have the material only option like in early versions of PBRFusion where it would just generate normal, height, etc... without touching the input image

[sour mauve]

can i get some suggestion from you guys

how can i make the outputted textures look a little less dogshit

i just downloaded it and i didnt change nothing yet i feel like i fucked it up somehow?

[random carbon]

@hallow leaf i am very blatantly advertising pbrfusion in other servers atp lol

it's amazing

[random carbon]

and this is insane

[young heart]

idk but even upscaling to 1k on 12gb of vram appears to give me issues

[edgy cedar]

I've got a 3060 Ti 8GB and the times I've had issues, were when the Remix Toolkit was open and editing a project. I usually close the toolkit when using PBRFusion (or just closing the project seems to be good enough, sometimes)

[meager oracle]

Is there a way to batch-process more than 100 files? I was hoping to leave it running on the 3000-ish textures from all of the captures from a game.

[meager oracle]

Actually I think i've found the solution:

[sour mauve]

@stray folio

[meager oracle]

PC crashed after 2 hours lol. I think the batch being 100 by default might be for a reason.

[stray folio]

I'm on a 3080 10GB, drivers up to date, VC Redist. installed and can't for the life of me upscale anything even up to 1K. Not sure what's wrong, I simply cannot get this working.

[hallow leaf]

Try this VC redist aio to be sure

https://www.techpowerup.com/download/visual-c-redistributable-runtime-package-all-in-one/

[stray folio]

Unfortunately didn't fix the problem. I even tried re-extracting the archive to see if maybe that was causing it and I installed 7-zip explicitly to do so. Maybe my download of the archive got corrupted so I'm gonna give that a retry.

[soft bloom]

I've been plugging the depth finetunes any time someone mentions height maps creations in Morrowind servers for like a year now it's so good

[soft bloom]

Has anyone had issues with occasionally heightmaps not tiling at all. I ran a huge batch of things that worked great and then recently tried some textures that had no luck at all.

[dusky shoal]

I've never been able to get pbrfusion to tiling texture correctly, it seems to be random luck if the heightmap lines up nicely when using POM and not getting odd protrusions between the tiled textures. I'll end up editing troubled textures in paint.net using a seam blending plugin but I don't run textures in batches as I upscale them one at a time in Topaz gigapixel before running through PBRfusion.

[hallow leaf]

There is no seamless processing in this

Also someone found there was an extra model zip in the portable install so it is now 12GB smaller

[spice bloom]

sorry but curious question i just downloaded this and i cant seem to find the template for pbrfusion where can i find it?

[hallow leaf]

json files in the root of the folder you downloaded drag into comfyui browser tab

[spice bloom]

ohh i founded it thank you so much Raven ❤️

[soft bloom]

Yeah that makes sense, I pre-tile the textures run the depth calculation then blend the tiled edges back in usually, but sometimes it doesn't work well.

[bleak gale]

How to i get automatically use the input name to the prefix?

and how to get texture to be metallic look.

[hallow leaf]

should be doing that with batch loader

metallic youll have to set that in toolkit to 1

[bleak gale]

yeah but it's only putting in output folder

but only 1 image file (with pbr tags) did but no other file that have processed earlier)

seems to be deleted itself.

[bleak gale]

where's that

[hallow leaf]

in the remix toolkit when you are editing textures

they should all go in output folder

[bleak gale]

yeah but folder has 12 texture, batch outputs with process did the all textures but only 1 texture has been done with pbr.

or i'm using it wrong

seems not processing the next texture automatically.

but doing ctrl shift enter seems doing fine

and it's stopped after 2 or 3 textures

[hallow leaf]

just need to change number next to que button to 12 and hit run

make sure index is back to 0

[bleak gale]

where at?

[hallow leaf]

see the blue button on the screen somewhere?

says run or que

[bleak gale]

there's no run button

[hallow leaf]

hmm

try hitting f?

or hit f11 and make sure its not hidden behind taskbar

[hallow leaf]

also press x on the bottom right there red x

[bleak gale]

yep

[bleak gale]

oh so don't have metallic texture.

[hallow leaf]

correct

[bleak gale]

Why can't just generate via pbrfusion with config. Matte/Shiny metallic or with slider

[bleak gale]

But Generated Roughness is preventing to make them metallic.

either use the Adobe 3D Sampler to change the Roughness and Metallic.

[hallow leaf]

Open powershell and run these two commands

cd C:\Users\DarkBeast2024\Documents\ComfyUI

.\python_embeded\python.exe -m pip install -r .\ComfyUI\custom_nodes\COMFYUI-PBRFusion4\requirements.txt

@limpid cloak

[limpid cloak]

copied the "cv2" folder from my main python install, thank you 🙂

seems to work now

😄

[glass spruce]

Can it generate an AO map?

[tough mural]

No, and there’s no reason to. Remix doesn’t use AO maps

[glass spruce]

Yeah, I figured that out myself—I wanted to use this AI to generate textures for UE5

[tough mural]

PBRFusion is an upscaler. It doesn’t generate textures from scratch

For UE5 you’re best off using free PBR textures online. There’s tons of em out there

[glass spruce]

Well, I used a diffuse texture to generate all the other PBR textures
There's a game built on UE5 that uses only diffuse textures, and I'm trying to convert them to PBR, that's why off-the-shelf libraries won't work here

[tough mural]

Ah interesting. That might be viable then. Keep in mind AO maps are generated based off of height regardless, so there’s nothing stopping you from making your own seamlessly using the height maps given from PBRFusion

[glass spruce]

Unfortunately, I don't understand a thing about these nodes. There's no AO generation in this node—do I need to create it myself? Like those three on the right?

[tough mural]

I have no clue if comfyui has any native way to generate AO. Given it’s not texturing software, probably not. You can use InstaMAT and use the node graph

Insert your height map, plug it into a Height to Ambient Occlusion node. You’re done

InstaMAT is free

[glass spruce]

It looks like it can't be connected to the comfyui

[tough mural]

Correct. It would be a separate process

Use comfyui and generate all your textures. InstaMAT would be used after that

[glass spruce]

Can ComfyUI or PBRFusion determine which material I’m using for generation? Like leather, stone, earth, etc.? Adobe Substance 3D Sampler has this feature

[tough mural]

I don’t think so

It’s meant to be a minimal setup process. Sampler afaik doesn’t do batches so if you’re doing one texture at a time that’s much more viable

[hallow leaf]

V1.0.3 Update thanks to @limpid cloak for bringing to my attention, the huggingface space had better normal outputs then the comfy pack, this has been fixed, updating main file, or can drag this into root next to run_nvidia_gpu.bat to patch

also FYI the PBRFusionV4 node is available as a standalone node pack and is on comfyui manager

https://github.com/Night1099/COMFYUI-PBRFusion4