Mapping a gradient ramp

- [Instructor] To begin our chapter on advanced mapping,…we'll look at an interesting technique for remapping colors,…In this way, we can map brightness onto a ramp…to create a new color palette.…In this case, we'll apply different colors…to this sculpture.…We'll make it so the crevices are darker,…and that's also known as dirt map.…Let's open up the material editor.…We've got a physical material…for each one of the three objects in the sculpture,…the helmet, the hair and the body.…

They're all identical right.…Now double click on one of them,…and we can see that…we got a little bit of sub surface scattering…down to a depth of 0.5 centimeters,…and we have a reflection roughness of 0.5,…and also a base color, or diffuse roughness, of 0.5.…Next to each one of these,…I've got an ambient occlusion map.…Let's do the body first.…We're going to create a gradient ramp node.…It's found in Maps, General, Gradient Ramp.…

Drag that over.…And then connect the bitmap output…to the source map input of the gradient ramp.…And then connect the gradient ramp to both the base color,…