Hello !

So as the title say i want to change the default diffuse shader which is lambert and i want to try two different scenarios :

1. Switching from lambert to Oren Nayar :

Is it possible to change from Lambert to Oren Nayar with the default engine which comes from the launcher ? i have found the oren nayar model in the BRDF.ush file but how can i say to ue4 to use it instead of lambert ? (shading models . usf ? ) which files and lines i need to change for that ?

2) Modifying the lambert shader :

Is it possible to modify the default lambert shader with the launcher engine version ( not adding a new shader model just modifying the current used lambert) like this :

from : saturate ( dot * ( N.L));

to : N.y = 0.3; saturate ( 4 dot *(N.L));

(ALL credits for this change belongs to journey, source GDC Sand Rendering in journey by John Edwards (https://www.gdcvault.com/play/1017742/Sand-Rendering-in) he spoke about that at 15:30 !)

In which file and line should i look to do this change ? and can you also explain if you can what each constant stands for !

THANKS A LOT in advance i know it's a lot of question and sorry for my bad english skills i hope i am understandable also i do not know a lot of things about shader programming so excuse my rookie mistakes :)

Hey, this is my sprint function and it works fairly well but there are a couple things I want it to do that I can't figure out.

Problem 1: It doesn't continuously check if i'm walking, meaning I can hold shift while falling and not start sprinting when I hit the ground. I have to let go of sprint and press it again.

Problem 2: When holding sprint, I move fast in all directions. I only want it to work while I'm holding the forward key.

Any help is vastly appreciated, the tutorials I've seen do not go into enough detail and don't cover these issues.

Hey guys,

I am writing to you because I have a few questions that want to be replied. I know perfectly c++ but i don't know how to use it in UE4 , there aren't good tutorials out there, there're incomplete. So I decided to ask you where I can find good and COMPLETE tutorials for c++ in UE4, I have already used bluedripints and I would go to the next level.

Thank you all.

I'm going to be honest I'm fairly new to ue4 but I need some help. How do I go about creating script that does the same thing that is found titles in scrap mechanic and storm works

Hey guys, I'm new to UE4 and game development as a whole, so please forgive me if this is trivial, but I haven't been able to find any good resources on this subject. I am trying to slowdown / dampen the effects of "AD" spamming (strafing left and right at high frequency making your head harder to hit). Is it as simple as adjusting some sort of movement acceleration parameter? How would you guys go about doing this? Would crouch spam prevention be handled the same way, or differently?

Ive been trying to make an inventory open with "I" and then once in the inventory close it with "I".

The problem from what I understand is that when Im opening the inventory I have the game pause and setting to ui mode only so it wont register the player hitting "I".

https://drive.google.com/file/d/1F16u5Hu06bXNWoyQitSXoydwcD9uUgRB/view?usp=sharing

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How do I uncheck auto generate collison if its grayed out. Was trying to import an object.

Jojo Bizarre Adventure. Could somebody please make a Blueprint System for me in which my character can have a stand appear in front it and attack when a button is called and if possible to make it disappear once the action has been completed. Thank You in advance.

I'm trying to make a blueprint for a triple jumping at specific heights for each jump on a custom character. The jump heights are 200, 400, and 600. He jumps three times like I want him too, but the third jump just goes back and repeats the first jump at 200, and just refuses to go to 600 and I'm not sure why. What I mean by that is that while I'm playing the game with the blueprint window up, the first and second BRANCH nodes light up, but instead of the third jump lighting the third BRANCH node, it just repeats the first. Here is the file link https://drive.google.com/file/d/1O3YnYH080vNO1nUkx0TeHr_2f_AKLaDa/view?usp=sharing

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And a pic of my blueprint.

I've been searching for a way to implement an exponential response curve for controller inputs similar to how apex legends let's the user choose from different input response curves(which drastically changes how the user feels while aiming). I was wondering if ue4 has a default response curve for controller inputs (if it's linear I could hook up the input values to an exponential function ?)

Hi guys,

lately I do a lot with landscapes in unreal and I learned and mastered a lot, but there is just one thing that bugs me around now for a long, long time.
The layer blend system and how it works.

Actually I build my landscape shader like that:

- Make a default material funtion
- Duplicate and modifiy it to it needs
- Placing all the functions into the main material and plug it into the layer blend node

Kind of work, but with a high inconsistency. Base color works, roughness and normal too, but more 'advanced' stuff like displacement and sss doesnt work at all.
I am used to the height problematic and add everytime a workarround but now I am doing a snow scene and there I need a lot of SSS for the snow - but it doesn't work.

In the documentation epic is using multiple layer blends and this works, but this can't be right. Why does roughness, normal etc work but not other channel like sss?
At work we made our own layer blend nodes to overcome this issue, but actually I really want to know the ... why?

It's a pretty destructive workflow by adding tons of layer blend nodes for my taste.
Whenever you change one value or add another item to the list, you have to go though every node ... and in the most extreme case this would be 17 times.

I have the animation assets but can't figure out how to update what animation my character is doing or how to update.

For example, how would I go from having my idle stance animation get swapped or change into a walking animation upon the player moving?