Silhouettes Let n be the surface normal in the OCS, p be the fragment position in the OCS, and e be the eye position in the WCS. Let M be the object-to-world transform, and V be the world-to-view transform. All these vectors and matrices are homogeneous. Which expression below is true when a fragment is exactly on a silhouette? (e - Mp) n = 0 O-Mp Mn = 0 OV(e-p). Vn=0 OVMp VMn = 0 (Alt + A)

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Silhouettes
Let n be the surface normal in the OCS, p be the fragment position in the OCS, and e
be the eye position in the WCS. Let M be the object-to-world transform, and V be
the world-to-view transform. All these vectors and matrices are homogeneous.
Which expression below is true when a fragment is exactly on a silhouette?
(e – Mp). n = = 0
-Mp · Mn = 0
OV(e-p). Vn=0
VMp.VMn=0
(Alt + A)
Transcribed Image Text:Silhouettes Let n be the surface normal in the OCS, p be the fragment position in the OCS, and e be the eye position in the WCS. Let M be the object-to-world transform, and V be the world-to-view transform. All these vectors and matrices are homogeneous. Which expression below is true when a fragment is exactly on a silhouette? (e – Mp). n = = 0 -Mp · Mn = 0 OV(e-p). Vn=0 VMp.VMn=0 (Alt + A)
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