When the Lighting section is opened and the Strength is not 0, there are two extra tools that open on the image.
One is the directional light and this is shown by a Sun shape which can be dragged around the image to adjust the direction of the light.
The other works like the extend areas tool and appears like a hand drawn arrow, and will drag the light from the place where you first click, across the area where you then drag the tool.
This is to help make the areas of lighting the same where they should be the same, for instance, on one surface at the same angle.
The lighting section contains a tab with Presets and a tab with sliders.
Adjusting the Strength slider opens up the other options.
The options are:
Shadows – Opens up the blocks of colors for the shadows and the sliders to adjust to exactly the color that you want.
Highlights – Opens up the blocks of colors for the Highlights and the sliders to adjust to exactly the color that you want.
Cloud shadows are shadows cast by the sun onto the ground. These can be used to make a flat landscape more interesting.
Shadow Type – Adrop down to select different patterns of clouds to cast onto the ground.
Shadow scale – Allows you to increase or decrease the amount of shadows cast onto the ground. When it is 0, then this has no effect.
Angle – Rotate the shadows cast onto the ground.
This section only appears when you have dragged a building label onto the picture.
Relight as facade – Button to adjust the lighting so that all buildings are lit as if theywere vertical flat planes. Turn on or off.
This gives you a slider for each section that decreases the lighting in each of the areas.
This gives you a slider for each section that allows you to change the roughness of each area. Rougher areas will bring out more texture, especially when the light is glancing.
Reset Section and Save Sliders
Clicking the Reset Section will set all the sliders in the Building heading to zero.
Save Preset opens a box to name a preset, and will save the Preset as the position that the sliders are currently in.
This will then be available to you now and when you next open the software, it will still be there for you to use again.