Glass material with Lumen in Unreal Engine 5.3 | TUTORIAL 

Hi. Try to see in the little viewport of the material if it's set to lit mode or not.

Hi. Glad you liked it. I actually have a video about curtains here on the channel.

It does make the performance go down actually because it uses ray tracing, which is far more advanced. But it's not a huge impact, I mean it depends on your gpu.

Glad you liked it. Thanks for the ideas, noted for the future.

1. I think you mean the graininess of the refraction. In realtime it is a bit grainy, but if you render the image with a decent amount of samples it's going to look nice. 2. I agree. I think the transparency map is for the refraction, in this case you would put it in the slot where you set the IOR. But it could also be an opacity map if there isn't one. I don't really know why would you use one for refraction, it doesn't really make sense. It's hard to tell if I don't know the context. But try it out!

@@drawwithnightbuzzer it's a big bottle with a ship model inside, next to a wall. I figured out the problem with the rat tracing and somehow by playing with the other settings. Thanks for your advices ;D

@@da_drood-digitalart how did you figure out the problem? i have the same issue. the moment i turn on raytracing the glass looks super ugly

@@tayayoung6031 sorry unfortunately i can't remember how i sorted that out precisely, if not just by playing a bit with the settings available *_*

Hi. Can you send me a message on instagram with some pictures?

@@drawwithnightbuzzer sure. Thanks for responding

Hmm. I have seen videos, but I never tried it. I'll see what I can do.

Hi. I am not sure why that happens, but I don't think it has something to do with the version. I think mine works, so try to look in the material editor at the error panel, forgot how it's called. Usually it says there if something is not properly set up.

@@drawwithnightbuzzer Let me be more specific- I am following a VFX course made on v. 5.1 and all sprites / meshes with additive materials seem to emit light when bright enough color is set. In 5.3 this is no longer the case material. If you want to reproduce it, get a simple plane, apply to it the DefaultSpriteMaterial (any material with blend mode == Additive will work too) and add a very bright color (V >= 3 lets say). Place it on a level of your choice. Then change the blend mode of DefaultSpriteMaterial to opaque and see the difference. I hope there is a setting or a way to go around this

This was a premade scene from the marketplace, but usually I make the furniture myself so that it fits my scene and for example I would add sofas or chairs and other decorations from other websites.

@@drawwithnightbuzzer thanks ! When working with clients on tight deadlines and a lot of iterations it's not doable, that's why I use sketchup/ enscape. I started to get into unreal, but as much as I want to implement it with my workflow I still find it not suitable for the early stages.

Yeah, I agree, Unreal is a lot more suitable for final shots. But I think you could use Twinmotion instead of Enscape if you want something new. It also comes with lumen or path tracing and is more user friendly and more suited for archviz or something like that. The great thing about Twinmotion is that is based on Unreal, so for the final stages, you could import the Twinmotion file into Unreal with everything set up already.

We use 3D sky, we just fill it with credits and then the team can just download whatever assets we need. Sometimes we have to model very specialty furniture, but 3D sky has A LOT of stuff. (it's all for 3ds max, but just import it to max and use datasmith to bring it into UE)

@@tayayoung6031 thanks ! Yeah 3dsky is awesome and there's a lot of free stuff too !

Actually, I'm working on a few videos regarding exterior and interior lighting from scratch, but I am using another scene made entirely by myself. So I hope it will be helpful.

@@drawwithnightbuzzer 😻

i have shared the image as well , i can send this to you on some other platform if you want to

Hi. Yeah, pretty much any lights will appear on the reflections because they're visible, but if you want to get rid of just that reflection of the rectangle light, you can disable "affect ray tracing reflections" in the details panel of the light, but note that it will also lose the lighting effect in the reflection. Hope this helped.

In rectlight or any light therés an option called specular scale set it to 0

Would be nice if they implemented that, but not any time soon I'm afraid, but who knows?

Hi. I'll try it myself and find a sollution to this. I'll let you know.

如果您有开放折射率，您可以尝试将折射率更改为正常像素偏移

Hi. I don't really use hdri, I use a simple sky and sun system. I don't really remember which one, but I think there's a setting in the details panel of the glass material.

@@drawwithnightbuzzer Is there a setting so that the glass does not reflect the sky?

I am almost certain that there is one.

Same problem here...

Sorry, my bad. It is not in the glass properties, but in the skylight properties. In the light panel of the skylight disable "affect ray tracing reflections". Hope this helped.

Hey. I think it's your 3d model. You should shade it smooth before importing.

@@drawwithnightbuzzer it was actually 5.4 because I did it in 5.3.2 and it works great 😁

I'm not sure on how to solve it. It's not a problem for 5.4 but all versions, at least the ones that I worked with. But if you apply it on your model it will work.

@@drawwithnightbuzzer That's true, it does work normally, just looks odd when I configure it but I can't see the preview in the settings

Hi. Check the details under the Window tab.

@@drawwithnightbuzzer its showing tick but wont showing if u give me ur ig i can send u some ss

My ig is in the description. Sorry for the late reply.

For windows, usually I turn off the refraction. And if you don't like the look of raytracing translucency, you can leave it to raster as it looks good in most cases.

The material preview sometimes acts up and won't change, but if you apply it onto your asset, it will look fine.

I don't think so, but each step is explained, so if you follow them, you will create it yourself very easily.

Sorry to hear that, but it may be because of the lighting.Try it in different scenarios. If it doesn't work, let me know.

I had to turn off Lumen and use Raytracing, otherwise the glass looked too dark.

Hi. you can either do it with a roughness texture, or more accurate with substrate material.

Yes, it's a limitation for now. I really hope they look into this for the next versions.

@@drawwithnightbuzzer I'm duplicating the glass object, altering its material, and then setting the "Actor Hidden In Game" flag to true in the details panel. After that, I navigate to the Lighting section and enable the "Cast Hidden Shadow" flag to create shadows.

That's very smart. I didn't think of that.

just in 5.3 haven't shadow? @@drawwithnightbuzzer

It's like that in earlier versions as well.