Unlit material completely black on lit viewport [SOLVED]

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1

Hi,

really strange, the unlit material goes completely black

i create new blank project

  • create an cube
  • create an unlit material and apply

it’s all black when i am on lit viewport, but working when i am on unlit viewport,

thank you for your help.
Best Regards
Daniel

ue4light.jpg
ue4light.jpg736×527 80.5 KB

2

What’s in the emissive of this Unlit Material?

3

Hi,

thank you for your help,
i just promote the material emissive color and change the color.
is the brand new project , insert sphere , create material, change to unlit, and change color,

and it’s black…

i had an windows update, and it’s seem to start from there. but not 100% sure

u4color.JPG
u4color.JPG1906×1099 305 KB

4

I see you’ve yet to apply the changes to this material - could this matter?

5

hi,

i try to use a material from the starter content.
if i passe the shader in unlit i am getting all black

on the output log , i have this line but not sur if it’s the problem


LogMaterial: Display: Missing cached shader map for material bbbb, compiling.

u4color2.JPG
u4color2.JPG1275×1295 220 KB

6

i tried re-install visual studio and unreal.
same issue i don’t know if it’s because the window 10 update

Thank you for your help.

7

Perhaps it’d better to resolve the issue with the most basic setup rather than jump into another material? Not sure why / how this escalated so quickly :slight_smile:

8

Really strange,
i open an older project and it’s working.

BUT… i just try on my laptop create a **automotive > new blank scene **and i make the same which as:

  1. import sphere
  2. create material,
  3. change to unlit
  4. change the emissive color
  5. apply.

and it’s black also …

it is a normal behavior ? and i need to set something somewere ?..
(my laptop as also had the last windows 10 update)

thank you for your help.

u4color3.JPG
u4color3.JPG1613×1180 297 KB

9

but what is strange , if you see on my first post , if i passe the vieport in unlit i have the right color. and goes black when i switch to lit.

10

i found something.

If i create a Game -> blank project -> blueprint or C++ it’s working
if i create a Automotive -> Blank project -> is not working .

thank you for your help .
best regards
Daniel

11

I wish I could help but I’m as confused as you atm. :expressionless: Or more.

12

Likely the advice I give out the most.
Racquire your engine files, from launcher.
Basically validate the engine install. Something is definitely incorrect.

13

FOUNDED !!!

After :

  • reinstalling unreal
  • upgrading visual studio 2019
  • refresh framework.net
  • update nvidia driver.

It was,
i changed the unit of light on the project setting (on modo i use the lux) and when i switch the default lux value for unreal is 75’000 lux …
i little to high :slight_smile: (i t seem a bug to me)

Thank you very much for taking the time to help :slight_smile:
Have nice day.
Daniel

ue4light2.jpg

3 Likes
14

Nice work! I’ve got similar problem, when i tried to make a light emitting material in standart product studio project from ue4 templates. And light sources was so bright that my material was completely black.

15

I had a similar issue and came across this thread - one thing for anyone else who’s experiencing this is to try plugging in their material to emissive, that worked for me (I am probably a noob but hopefully someone finds this helpful)

2 Likes
16

Thanks, this should be pinned as the solution.

17

Thanks. This worked for me.