Welcome to my first After Effects tutorial!
A while ago I created this visual effect of making fire with your hands:
When you create your videos, many different situations might require you to add visual lighting effects in post production for things like gun muzzle flashes, lightning strikes, explosions, artificial light sources and more. However, many YouTube videos I've seen use a rather unsightly technique of placing a masked orange or white circle over the footage and setting the blending mode to additive... not a very elegant or convincing effect.
Fortunately, you do not need to put in much additional work to make your visual lighting effect look a lot more convincing. By using a simple matte layer, you can make your effect look more organic and blend much better into your footage :)
In After Effects, I have set up 2 layers: one for the base footage called 'Footatge Comp' and one for the fire element called 'Fire Comp', placed on top and positioned and scaled so that the flame sits nicely on my thumb. The fire element is a stock footage element from the Video Copilot's Action Essentials 2 collection.
Now that we have the basic footage set up, let's add an organic lighting effect to the fire element :)
Create a new solid layer, name it something like 'FireShine' and give it an orange-yellow colour to match the colour of the flame. Using the masking tool, draw a circle on the FireShine layer and position it so that the centre of the circle is exactly over the fire. Add a fairly large amount of feathering to the mask to have the light fade off gradually.
The lighting of the candle is way too strong, so reduce the transparency of the FireShine layer down to around 35%. Change the blending mode to 'additive'. Voila, you are done!
Ok ok... just kidding :D While this visual lighting effect might not look all bad, let's make a small modifications to our fire shine to make it sit much more naturally in the scene rather than on top of it :)