Photoshop tutorial - creating fog

Last week we had to do a little presentation/ demonstration showing others in the class how to do something on Photoshop, the area that I chose to demonstrate was how to add fog to an image making it look misty, below are the stages that I showed people to enable them to understand how to add for to their images;

open the image in Photoshop:

add a new layer and call it 'fog':

go to the filter menu at the top, go down to Render and across to Clouds, selecting the clouds which will add a layer on top of the image:

add a mask layer to the layer named 'Fog':

select the layer type which is set to normal, select the drop down menu and change it to 'screen':

this will remove all of the black areas on the layer labelled 'fog' meaning you can now see the image below.

Make sure that the Mask layer is selected, select the paint brush and make sure that the colour selected is black:

and using the paint brush tool go over the areas of the layer you want to get rid of:

(by changing the colour selection to white you can draw back over areas you remove if you decide you want them back, that is only if you have the mask layer selected)

At the moment the fog looks too fake and just looks stuck on top of the image so to make it look a bit more realistic and natural there are two different things to do.

Make sure the mask layer on the 'fog' layer is still selected, then go to filter, blur, Gaussian blur:

and adjust the dial at the bottom to a point where you want it to be:

then select the filter layer on the layer named 'fog':

then go to filter, blur, motion blur which will add movement to the layer making it blend a little:

and again adjust the dial to a point where you want it to create motion within the layer:

now adding a layer of fog to your image is complete: