Problem with alpha channel in spec map?

[ashwin.sudhir]

Was surprised to find this in the documentation

"Specular map should be without the alpha channel to avoid artifacts"

 

Is this still a problem? What kind of artifacts might appear? Is there some other way of controlling the spec power?

-a.

[frustum]

You shouldn't use zero values in alpha. Alpha zero areas cause NaN values in rendering pipeline.

[ashwin.sudhir]

Guess this is a documentation bug then; it should probably read (if I understand it right):

"Specular map should be without *zero in* the alpha channel to avoid artifacts *on DX10 renderers*"

 

-a.

[manguste]

Fixed, thank you.