Fill Lights are sometimes set to be Diffuse-only (set not to cast specular highlights.)Ĥ. To simulate reflected light, tint the Fill color to match colors from the environment. Shadows from a Fill Light are optional, and often skipped. If multiple Fills overlap, their sum still shouldn't compete with the Key. For more shadowy environments, use only 1/8th the Key's brightness (a Key-to-Fill ratio of 8:1). Spot lights are the most useful, but point lights may be used.įrom the top view, a Fill Light should come from a generally opposite angle than the Key - if the Key is on the left, the Fill should be on the right - but don't make all of your lighting 100% symmetrical! The Fill can be raised to the subject's height, but should be lower than the Key.Īt most, Fill Lights can be about half as bright as your Key (a Key-to-Fill ratio of 2:1). With several functions for Fill Lights, you may add several of them to a scene. Fill Light can simulate light from the sky (other than the sun), secondary light sources such as table lamps, or reflected and bounced light in your scene. The Fill Light softens and extends the illumination provided by the key light, and makes more of the subject visible. Your "one light" should look almost like the final rendering, except that the shadows are pitch black and it has very harsh contrast - see the GIF animation at the top of this page, while it only has the Key light visible.ģ. Your "one light" scene (with just the key light) should have a nice balance and contrast between light and dark, and shading that uses all of the grays in between. NOTE: Be sure to stop and do test-renders here. Specular highlights are triggered by the Key Light. The key light is brighter than any other light illuminating the front of the subject, is the main shadow-caster in your scene, and casts the darkest shadows. From a side view, raise the Key Light above the camera, so that it hits your subject from about 15 to 45 degrees higher than the camera angle. From the top view, offset the Key Light 15 to 45 degrees to the side (to the left or right) of the camera. Your Key Light represents the dominant light source, such as the sun, a window, or ceiling light - although the Key does not have to be positioned exactly at this source.Ĭreate a spot light to serve as the Key. The Key Light creates the subject's main illumination, and defines the most visible lighting and shadows. When you add your first light, there should be no other light in the scene.Ģ. Make sure there are no default lights, and there's no global ambience. #Types of lights in arnold for maya how to#Here's how to set them up in your 3D scenes:ġ. This GIF Animation shows the role of the 3 lights. Three lights: the Key Light, Fill Light, and Rim Light (also called Back Light), are adjusted to achieve the classic Hollywood lighting scheme called three-point lighting.
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