2009

Table Of Contents
utilising HDRI-based light sources (see Image-based Lighting for more information), and an Exterior
folder, that contains three light studios for different city locations around the World (Clear Sky, Overcast
Sky and Sun Study).
If you are creating an external render of a building, for example, then you may find that one of the
Environment light studios can give a very realistic effect, using Image-based lighting to light the scene.
Alternatively, Exterior light studios may give you the effect you require. These do use physically accurate
lights however, which generally take longer to render the scene.
Alternatively, you may prefer to use the Standard Light Studio as a starting point and build up your
lighting from there, adding combinations of the basic recommended lights to create the desired effect..
The Standard archive contains a Default Eye Light studio (which is effectively rendering with a head
light); a folder of Exterior light studios which predominantly consist of studios that use a number of lights
to replicate the effect of a Sky light. Not using physically accurate lights means you don't have to turn on
Auto Exposure (see Auto Exposure ) which can negatively impact on the basic recommended light
settings; a folder of Interior light studios for use in internal scenes; a folder of Object light studios which
are best suited to lighting smaller models, such as a vehicle or piece of machinery, for example; and a
folder of Projector light studios, which can be used to project an image onto an object in the scene.
The Templates archive contains all of the basic light shaders that are available. These can then be
edited (as can all lights) to create the exact lighting you require (see Editing Lights for more information
on editing lights).
Adding lights to the scene:
1. From one of the archives in the left hand pane of the Lighting tab, choose the light you wish to add
to the scene.
2. Drag the light and drop it into the palette (right hand pane of the Lighting tab). This will automatically
be added to the scene. To reposition the light within the scene, see Positioning lights in the scene.
Note:
If you drag a light studio into the palette, this will replace any existing lights with those that make
up the light studio.
As a general guide, the more lights there are in a scene, the longer it will take to render it
photorealistically. For external rendered scenes, you may consider using the Standard Light
Studio, (from the Recommended archive) as a starting point, then strategically add a couple of
Point and Spot lights around the scene, (Point lights are good to light up a dark area of the
scene, whilst Spot lights can add an element of drama and enhance realism).
Positioning lights in the scene:
1. Having added a light to the scene (see Adding lights to the scene, double-click it, or right-click and
click Edit on the shortcut menu, to open the Light Editor, (see Editing Lights ).
2. Point, distant, spot and projector lights have a Location parameter. Distant and spot lights
additionally have a To parameter. You can type in x-, y-, and z- coordinates for these, or alternatively
Presenter Lighting
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