Creating the road material
Now that the lighting is ready, let's start creating the materials for our scene. We will start with the creation of the asphalt and the land that will be covered by the grass.
Getting ready
Before we start, we need to move Sun Lamp to the first layer and then activate that layer. So with Sun Lamp selected, press M and then click on the first layer. In case the scene is too heavy, we can move the the elements that we won't be needing to another layer, for example, the tree. Moreover, in the modifier panel, we can deactivate the viewport visualization of the grass and flower particle system of the ground. To do this, select the Ground mesh and from the Modifier menu, click on the eye button next of the two last modifiers of the list. In this way, the grass and the flowers will not be shown in the viewport, which will greatly benefit speed. Note that in case of a render they will be rendered regardless, but they will not show up in the real-time viewport...