PhotoShop CS6 - Lighting Effects Not showing

sorry it's not working for me 

Mine is already in 8bits/channel and it is still not working. Please advise.

I have the same problem, i was able to use it in cs6 so not sure whats going on

Same problem when I'm using Photoshop CC 2014, whenever I click Lighting Effects from Render, its dialog box won't launch but instead a new layer is appended named "Lighting Effect". This was clearly a bug. Since I can't debug via CC, what I did was I installed CS5 to be able to do the lighting effect, without uninstalling CC. So, all in all I have 2 separate Photoshop versions without conflicting each other, where I use CS5 for lighting effects purposes.

ive tried all of that changing drawing mode selecting graphics processor and 8 bits mode but still not working. any other suggestions?

i keep swapping the file from one laptop to another using an older photoshop version just so i can add a lighting effect. Very annoying.

this really helped me with 8 bit.... thanx so much bro

Lighting effects and lens flare does not work in CMYK mode.

I had exactly the same problem and here is the answer: update the driver for your video card. And when you update, go to the vendor website! (i.e. the vendor of the particular video card you have). If you don't know what kind of video card you have, use the commands: Control Panel/System/Device Manager, then double-click on "Display Adapter". It will display a tab called "Driver", which will give you the date of your current driver. If it is anything older than maybe a year, go to the vendor site and download the appropriate driver. My download was about 260MB in size. It also seemed to improve my screen resolution a little at the same time.

But there is more! Photoshop CC uses two things called OpenGl and OpenCL. I have no idea what they are, BUT, I think both of them must be selected in order for Lighting Effects to work on Photoshop CC. And where do you select these things? Edit/Preferences/Performance

And finally, check the box "Use Graphics Processor", then click on "Advanced Settings". Under Advanced Settings you will see

And you guessed it! Click on the box "Use OpenCL". I have no idea if the 30 bit display box should be checked - I was trying everything at one point.

Anyway, it seems like Adobe has adopted new technology somewhere along the way, such technology not being included in video drivers just a few years old. Personally, I think Adobe should have made more of an effort to highlight this problem and provide an easier-to-figure-out solution.

Hope this helps!

Frank

Go to Preferences (under the Photoshop menu on Mac, under the Edit menu on Windows) > Performance. Is "Use Graphics Processor" checked, or is it greyed out? If it is checked, click the Advanced Settings button and change Drawing Mode to Basic and retry.