Step 2 Drag your image from the Project panel into the composition and resize it to fit. This will act as your placeholder reference image, so rename the layer ‘Ref’ by clicking on the layer name, pressing Return and typing the new name. Duplicate the layer (Cmd/Ctrl + D) and rename the duplicate ‘Projected’.
Step 3 Create a new Light by choosing Layer > New > Light. Choose a Point Light type, and set the intensity to 100%. Set the colour to white, tick the Casts Shadows box and set Shadow Darkness to 100%. Finally, make sure that Shadow Diffusion is set to 0px.