Octane plugin normal maps problem Tweet

[amadudkin]

The solution has already been given, in that some DDC for the green channel.
1. Get both Unreal and Octane going the same direction (even wrong)
2. Add to the normal node, a float value and a flatten normal
3. Adjust value positive or negative for best results.

It seems that this is too difficult for me at this stage.. Maybe you will be able to show this process on the screenshot?

[ChrisHekman]

I found the Quixel material you are using.
Seeing as the material is upside-down, am I correct in that you are scaling the model with a negative scale?

No, I initially checked the directions of all the normals of my object, they are OK, upside down doors-this is my UV mapping error. In addition to this, I checked other materials like concrete or wood textures, they behave in a similar way

I might have a fix. Would you be able to share some of the models you are using?

Do you have the same normal shading error when you are using the unreal sphere primitive?

[amadudkin]

I found the Quixel material you are using.
Seeing as the material is upside-down, am I correct in that you are scaling the model with a negative scale?

No, I initially checked the directions of all the normals of my object, they are OK, upside down doors-this is my UV mapping error. In addition to this, I checked other materials like concrete or wood textures, they behave in a similar way

I might have a fix. Would you be able to share some of the models you are using?

Do you have the same normal shading error when you are using the unreal sphere primitive?

Here is my model, on which I tested the materials https://drive.google.com/open?id=1isR7mDZfAxlRRbHUUJ9C1Wbia76Hmn4h

Yes, the standart unreal sphere primitive has the same problem

[ChrisHekman]

Strange I am getting correct results on my end. Which plugin version are you using?

[amadudkin]

i use Unreal Engine 4.23.1 and Octane Prime 0_24_UE4_23 (the full name of my octane installer)

[ChrisHekman]

i use Unreal Engine 4.23.1 and Octane Prime 0_24_UE4_23 (the full name of my octane installer)

Could you try the latest version? I made a couple of changes related to normals in 0.25 or 0.26 i believe.

viewtopic.php?f=132&t=73502

[EvolverInteractive]

Got to the help section

viewtopic.php?f=134&t=73651

[amadudkin]

i use Unreal Engine 4.23.1 and Octane Prime 0_24_UE4_23 (the full name of my octane installer)

Could you try the latest version? I made a couple of changes related to normals in 0.25 or 0.26 i believe.

viewtopic.php?f=132&t=73502

Thanks, it works!

[theghalwash]

ue4 needs the green channel to be flipped .. octane need the green channel to stay unflipped. that is the case.