•Fill blending modes

Specifies the way in which the light is blended with the image.

Mix: Light as if reflected from a mirror. The light can be given a color.

Multiply: Light as if reflected from a dull surface (diffuse reflection).

Relation between test spheres and parallel rays

The following figure shows an example of the effect of parallel rays on a test sphere.

Test sphere

Ray

The direction of a ray 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 relationships between the longitude and latitude of parallel rays, input picture, and test sphere.

Z-axis

Parallel rays

Latitude=+0.25

 

Latitude

0.00 X-axis

Longitude

Input picture

Y-axis

0.00

 

Test sphere

Latitude=−0.25

148 Digital Multi Effects (DME)