MB86294 Datasheet, PDF (102/305 Pages) Fujitsu Component Limited. – Grraphiics Controller specifications

FUJITSU LIMITED
PRELIMINARY and CONFIDENTIAL
9.8 S h a d o w i n g
9.8.1 Shadowing
The Coral 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.
Body line
Shadow line
Shadow composition line
Body primitive
Shadow primitive
MB86294/294S CORAL_LB
Graphics Controller
102
Specifications Rev. 1.0