Can't use GRADIENT MAP at all, doesn't show up. help please!

[Jean5EFA]

Hello. I'm doing a very simple gradient effect on text and "gradient map" doesn't activate for me. I'm watching a tutorial on how to use it and for some reason, my feature doesn't show up. Can anyone tell me how to fix this?! 

I even trouble shooted and used a photo and still nothing. 

[Jeff Arola]

In Photoshop look under Image>Mode and verify your image is RGB Color and 8 or 16 Bits/Channel.

[Bojan Živković]

If above suggestion does not work please post screenshot of entire window with Layers panel expanded and visible.

[Hli L]

but in this way will change all my layers color, is there any other way?

[Hli L]

mine is 32 channel

[Bojan Živković]

Change to 16 or 8 bits per channel because Gradient Map adjustments aren't available in 32-bit mode.

[Hli L]

Thank you, I will. 

However, Do you know How can I export the 32 bits, none of the export option export the same as what I see inside the file. 

[davescm]

Why have you chosen to work in 32 bits/channel? 32 bit floating point is really for the extended dynamic range of HDR images and renders where you can have dark areas below the black you can see on screen, and light areas above the white you can see.
For normal images 16 bits/channel, integer, is more than enough to avoid banding artifacts and gives you access to more of Photoshops functions.

Dave

[Hli L]

I think 32 channels give me more color option, But do you know how to export to see the same HDR format as I see inside the file？

Thank you!

[Hli L]

Radiante & openEXR are not works for me, it make some element not visible.