This easy to follow tutorial is intended for
Anim8or users, showing a basic lighting set-up for an interior scene.
beginners are tempted to ignore the importance of a proper lighting,
professional photographers say "lighting is everything"!
|I set up a simple scene, without anything fancy. The room is a cube with a deleted face (to allow viewing with the camera). There is a rectangular window cut on the right side where the day light enters. Some simple pieces of furniture fill the space of the room. Notice on the left the distant placing of the camera, combined with a reduced field of view, to avoid an ugly perspective distortion.|
|Having the objects that make up the scene and the camera in
the position, let's add the lights! Our first choice is an infinite
light which simulates the sunlight. We want the light to enter only
through the window, so we have to set the light to cast shadows and the
room to cast and receive shadows. The image on the right shows
the settings for the infinite light.
Let's make a test render (see below):
|Well, it's rather disappointing... It seems more like moon
light. The explanation is simple: an infinite (directional) light
having the transverse area that of the window will light up only a
small area which it intersects, leaving the rest of the room in
To simulate the reality, just an infinite light is not enough! Trough the window enter not only the sun rays, but also a large amount of diffuse light coming from the outside environment.
|We are going to bring in the diffuse light from the exterior
adding a new light, now a local light, to illuminate the whole room. We
shall place it right in the center of the window (see above the image
with the scene setup). This light has to have a lower intensity
compared to the infinite light source, as the diffuse environmental
light is week against the sun light.
See on the right the parameters of this light source. Notice the large outer radius of the light compared to the inner radius! That's because we don't want to have a pronounced attenuation of the light along the room, that would look unnatural.
See on the next page a test render with the additional light!