Adding shadows

- [Instructor] We are ready to introduce … some shading to our colors now, … and I want to start by shading the face here. … First step is to pick up the color … that is already on the canvas. … So by clicking and holding Alt, … we switch to the color picker, … and if I now click somewhere here in my face, … I will pick up the face color. … If I now paint, nothing happens … because I'm painting with the color that is already here. … In order to introduce some shading, … I will now darken my color a little bit … and here in the color picker I will go a little bit down … and since we're painting skin, … I also want to enhance the saturation … of the darker color a little bit … so I go a little bit right … because skin transmits light. … And even the dark parts have a little bit of light in them … which gives them more saturation … than it would give a surface that does not emit light. … And now what I'm trying to do is to identify spaces here … in my face that might receive less light …