Arnold "specular_roughness" not working help!?

[Fahad_ALAsmari]

Guys I need some help why is the "specular_roughness" isn't working at all I can't even see any single change to the material roughness at all.

 

[wernienst · Accepted solution]

There are several causes possible.

First, specular should be at 1.0 and specular_color should be white.

In the Range node, output_min should be at 0.0, output_max at 1.0 and input_max greater than input_min, depending on the Bitmap.

In the Triplanar node, try Coordinate Space = object and different Scale values. Important: the smaller the values, the greater the tiles.

[Fahad_ALAsmari]

I made a big mistake which is adding these files and applying sRGB not opeing it as RAW file so yeah problem solved, anyways Thank you.