Sony MVS-8000X User Manual page 268

Background
Front view
No effect
BKGD selected
Surface Flat
For the currently selected light source only, you can
forcibly make the image surface effect flat.
This is effective when you have selected texture as the
image surface effect and want a flat effect for one light
source only.
Light shape
Creates the spotlight shape.
• Select the shape pattern (see page 528)
• Set the size, degree of deformation, softness, and
rotation angle.
Ring settings
Shines the light with a hole in the middle, like a doughnut.
Adjust the following parameters.
Offset: Distance to move the center of the ring from the
initial position (the position set when selecting the
light source in the <Spot Mode> group).
Radius: Inner side radius of the ring.
Angle: When Offset is set, the rotation angle of the ring
around the initial center position.
Initial center position
Angle
Offset
Fill blending modes
Specifies the way in which the light is blended with the
image.
Spotlight
FRGD selected
Both selected
.
Angle: Rotation angle
Radius
267
Mix: Lighting as if reflected from a mirror. The light
source can be given a color.
Multiply: Lighting as if reflected from a dull surface
(diffuse reflection).
Relation between test spheres and parallel
light rays
The following figure shows an example of the effect of
parallel rays on a test sphere.
Test sphere
The direction of the light is defined by longitude and
latitude.
• Longitude: A direction (angle), expressed as a plus value
for clockwise rotation in the plus direction with respect
to the X axis of the input picture.
• Latitude: Latitude
The following figure shows the relationship between the
longitude and latitude of parallel rays, input picture, and
test sphere.
Z-axis
Latitude=+0.25
Input
picture Y-
Test sphere
Latitude=–0.25
The unit of these direction parameters is the number of
rotations, with 360(1 rotation) expressed as 1.00, in the
same way as 3D rotation parameters.
The following relationships apply in the example shown in
the figure.
Parameter Setting
Longitude 0.12
Latitude 0.12
The fractional part of the setting after the decimal point
corresponds to an angle 0to 360. If the fractional parts
Light
Parallel rays
Latitude
X-axis
Longitude
Angle
45
45