Adobe Photoshop CS6 User Manual page 543

Spot Casts an elliptical beam of light. The line in the preview window defines the light direction and angle, and the handles define the edges of
the ellipse.
Adjust a Point light in the preview window
1. In the Properties panel, choose Point from the top menu.
2. In the preview window, adjust the light:
To move the light, drag anywhere on the canvas.
To change the spread of light (reflecting a light moving closer or farther away), drag the white section of the Intensity ring at the center.
An Intensity value of 100 is brightest, normal lighting is about 50, negative intensity takes away light, and –100 intensity produces no
light.
Adjust an Infinite light in the preview window
1. In the Properties panel, choose Infinite from the top menu.
2. Adjust the light:
To change the direction, drag the handle at the end of the line.
To change brightness, drag the white section of the Intensity ring at the center of the light controls.
Adjust a Spot light in the preview window
1. At the top of the Properties panel, choose Spot.
2. In the preview window, adjust the light:
To move the light, drag within the outer ellipse.
To rotate the light, drag beyond the outer ellipse.
To change the hotspot angle, drag the edge of the interior ellipse.
To extend or shrink the ellipse, drag one of the four outer handles.
To change how much of the ellipse is filled with light, drag the white section of the Intensity ring in the center.
Lighting Effects presets
Use the Presets menu in the Lighting Effects workspace to choose from 17 light styles. You can also create your own presets by adding lights to
the Default setting. The Lighting Effects filter requires at least one light source. Only one light can be edited at a time, but all added lights are used
to create the effect.
2 o'clock Spotlight A yellow spotlight of medium (17) intensity with a wide (91) focus.
Blue Omni A blue overhead omni light of full (85) intensity with no focus.
Circle Of Light Four spotlights. White has full (100) intensity and a concentrated (8) focus. Yellow has strong intensity (88) and a concentrated
focus (3). Red has medium (50) intensity and a concentrated (0) focus. Blue has full (100) intensity and medium (25) focus.
Crossing A white spotlight of medium (35) intensity with a wide (69) focus.
Crossing Down Two white spotlights of medium (35) intensity with a wide (100) focus.
Default A white spotlight of medium intensity (35) with a wide focus (69).
Five Lights Down/Five Lights Up
Flashlight An omni yellow light of medium (46) intensity.
Flood Light A white spotlight of medium (35) intensity with a wide (69) focus.
Parallel Directional A directional blue light of full (98) intensity with no focus.
RGB Lights Red, blue, and green lights that produce a light of medium (60) intensity with a wide (96) focus.
Five white spotlights, down or up, of full (100) intensity with a wide (60) focus.
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