I've added a few light effects in Photoshop. When I export it i.e., save a .jpg or any other format all of the layer that have the light effects applied on are coming out full black. The effects aren't being rendered/exported in the output file. How do I render the image with the light effects applied? I can see the effect applied in the Photoshop file. But the output is black.
The same thing happen to me. I tried all the suggestions and nothing worked. Here is what you have to do. Before applying the Light effects. Convert the Layer into a Smart Object, that solves the issue!
Hope it helps
With the original file, try Menu Image > Duplicate > check Duplicate Merged Layers Only option > Ok
Use this new document to save it as a .jpg file.
Just make a group to all layers of which you need to export in JPEG.
You can achieve this by selecting all layers and using Ctrl+G to make a group. Then make a copy of this group by pressing Ctrl+J, then select and right click on the duplicated group layer and click Convert to Smart Object option.
Hide all layers except this layer. Now Export to Jpeg.
Your issue should be resolved.
CTRL+A to select the entire canvas, then go to Edit > Copy Merged. Paste that as a new layer in your PSD to quickly create a flat composite of all layers that should export without issue.