DirectX or OpenGL for Normal Map for 3ds Max Arnold?

This is for Maya rather than 3ds Max but it may help :

https://substance3d.adobe.com/tutorials/courses/Substance-guide-to-Rendering-in-Arnold

Dave

Hello @jamesp81001848,

Thanks for the question.

From what I know, Arnold uses OpenGL. Therefore, as long as you're rendering with Arnold, you should use OpenGL. If the map is already made with DirectX, you can still invert the Y axis and the normal map will work as expected.

I am not an Arnold expert, but for the Alpha channel, I guess it depends if you're using transparency or not. If not, you can probably Force Alpha to 1.

Best regards,