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MB86R02 'Jade-D' Hardware Manual V1.64
18.10.8
Shadowing
18.10.8.1
Shadowing
The MB86R02 'Jade-D' supports a shadow primitive which is same shape as a body.
A shadow is drawn in a position shifted for a device coordinate(X, Y) by setting the OverlapXY
command. And by setting the OverlapZ, it is possible to control a drawing result to avoid twice
rendering in alpha blend or logical calculation.
- Line
Two shadow lines are drawn in a line shadowing. One is a shadow line and another is a
shadow composition line. A shadow composition line is used for avoiding an overlap with body
line. And drawing priority can be set for rendering performance or anti-aliasing.
- Triangle and polygon
A shadow primitive are drawn in a triangle and polygon shadowing. Drawing priority is fixed as
a body primitive is first.
18.11 Display Lists
18.11.1
Overview
Display list is a set of display list commands, parameters and pattern data. All display list commands
stored in a display list are executed consequently.
18-168
Body line
Shadow line
Shadow composition line
Body primitive
Shadow primitive
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