Tone map shader invert button doesn't work correctly

[monkriss]

If i have a texture which is a roughness map but I need to plug it into the gloss input for Corona, I need to invert it so I use the tonemap shader.
However, the tone map shader invert button doesn't appear to work correctly and instead puts the gloss to almost 100% gloss/ignores the map altogether

If I use the colour ramp and switch the white and black input (to invert the texture) it works correctly.


If I use the tone map shader invert button. its wrong


If i set the gloss to 100%, it looks exactly the same as setting the tone map shader to invert.


So its almost as if the invert button just completely makes it ignore the texture altogether?

[monkriss]

Sorry the images didn't attach?


Here it is with 100% gloss
https://imgur.com/a/N5F82V7

Here it is with tone map shader (same as the one above)
https://imgur.com/a/Z51v9I0

Here it is with colourramp, which is how it should looK
https://imgur.com/a/N87APrO

[blanchg]

Can you show me the multiply values on the tone map and the .mtl file that is generated.

[monkriss]

Hey,

here is a file for you with a glossy map and the tone map shader set up, along with the .mtl file :)

[blanchg]

Thanks I will look at this shortly