Problem: Reflection of Vray Light

Archive V-Ray for Unreal V-Ray for Unreal :: Issues
1

Problem: Reflection of VrayLight is missing
.vrscene imported into U4

Download the 3dsmax 2019 scene file here:

see problem with screenshots attached.

1 is using vray light
2 is using Rect UE4 light

latest Vray for Unreal 4.22.2

.jpg.jpg
.jpg.jpg3155×2002 504 KB

.jpg.jpg
.jpg.jpg3154×1990 514 KB

2

Hi, Bernhard

This is because the Specular Scale of the Rect light inside the VRayLightRect BP is set to 0. We did this because if you use a disk light the specular reflection will still be a rectangle. You can change that value by follwing the GIF:
SpecularScale.gif

Or you can use the Sphere Reflection capture actor to capture the scene in its current state. You can leave Screen Space Reflections On or Off depending on your preference. See the GIF:

ReflectionCapture.gif

Best regards,
Alexander

3

Hi Alex!

I see.. hmm.. wouldn’t it make sense to set the Specular Scale by default to 1 instead of 0?

4

Hi, Bernhard

wouldn’t it make sense to set the Specular Scale by default to 1 instead of 0?
Yes, it makes sense but you will have inconsistencies in the specular reflections depending on the type of light you are using. If you use rect light it’s Ok and will look fine, but if you use disk you will have a rectangle specular reflection. In future version we will modify it.

Best regards,
Alexander

5

I see.. I see.. cool.. you are my hero.. thanks a lot man for all your help and making this fun!
Appreciate it & till later,
cheers!:smile: