PBR Workflows | SIGGRAPH 2019 | Unreal Engine

[@FranciscoSciaraffia]

Been using unreal for 5 years, i've no idea why i watched this, lol.

[@larshaas2658]

Just a quick quick question from someone who wants to start using unreal. How long does it take before you are decent at ue4?

[@asr59]

same haha i thought it would be a wee bit more advance and could get something from it :(

[@asr59]

@@larshaas2658 depends on what are your objectives... using it for realtime visualization, about a couple of months if you use it daily. If you want to do blueprinting and create games i would say lots of months

[@larshaas2658]

@@asr59 I just want to do game environment art

[@tonysolar284]

If it dose not inform you, then it's not new.

[@GambitWolves]

Entertaining demo keeps me focused :) Basics are important!

[@PauloSamurai]

thanks! The future is unreal!

[@wmka]

Thank you and have a great day.

[@asr59]

I think some very basic concepts are missing here. For example, disabling the "sRGB" option in the roughness or other maps so UE4 read it as linear instead. Also multiplying the normal map for a scalar (wtf) when you should be using a lerp node that blends between the normal map and a 3 vector (R0,G0,B1), or using the "flatten normal" material function that comes with UE4. I want to think there was no enough time to explain this, but then I found out people doing these huge mistakes every day.

[@IGarrettI]

Great tips! Anything else ?

[@asr59]

@@IGarrettI i know another useful way of having better control of the roughness inside UE4. Create a lerp node, plug a scalar parameter into "A" and set it to 0, another scalar parameter into "B" and set it to 1 and plug the roughness texture into the alpha. I like to call the first parameter "roughness min" and the second one "roughness max". Doing this you remap the roughness values however you want.

[@rob9999]

I noticed that as well. Ive used Unreal for a while, but I didnt use it as often as I have the past year. You cannot control the Normal strength with a multipy and scalar. There are a number of ways to control it like you explained. But it takes a couple more steps.

[@gloriosatierra]

Yea huh for HDR and REC2020 right?

[@freetheinnocent8312]

@@asr59 any recs on an advanced material video to go thru things like you recommend here? I'm at an intermediate level

[@pixeldriftcollective]

Thanks, that was very informative and helpful. Great trainer/teacher.

[@spacepirate9882]

It's 100% about things that have nothing to do with PBR (like using the material editor to create and organize any material, creating instances, etc.) What about the PBR workflow? It doesn't even mention metallic, doens't explain what specular really is, what is its relation with rougness, etc. Do I need to use a specular map? A constant? Why does the documentation says that it should be left at default 0.5 but makes any material shiny?

[@Faizy_Writes]

Wow 😲

[@gloriosatierra]

Very useful thank you! 🌿

[@rendericeib4513]

point for UNITY on this one, way easier to arrange materials.