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TVP4020
Programmers Reference Manual
Graphics Register Reference
187
Name:
X Derivative - Homogeneous texture coordinate
Unit:
Texture Address
Region: 0
Offset:
0x0000.83C0
Tag:
0x0078
Reset Value:
Undefined
Read/write
0
8
16
24
31
Reserved
Fraction
Integer
Sign
Used to set the X derivative for the Q coordinate when texture mapping. Format is 2's
complement 2.27 fixed point.
Name:
Y Derivative Dominant - Homogeneous texture coordinate
Unit:
Texture Address
Region: 0
Offset:
0x0000.83C8
Tag:
0x0079
Reset Value:
Undefined
Read/write
0
8
16
24
31
Reserved
Fraction
Integer
Sign
Used to set the Y dominant derivative for the Q coordinate when texture mapping. Format
is 2's complement 2.27 fixed point.
dQdx
dQdyDom
Summary of Contents for TVP4020 PERMEDIA 2
Page 1: ...Texas Instruments TVP4020 PERMEDIA 2 Programmer s Reference Manual Issue 4 ...
Page 284: ...TVP4020 Programmers Reference Manual A Gouraud Shaded Triangle 275 ...
Page 292: ...TVP4020 Programmers Reference Manual Register Tables 283 ...
Page 314: ...TVP4020 Programmers Reference Manual Index 305 ...
Page 315: ...Index TVP4020 Programmers Reference Manual 306 Index ...
Page 323: ...Index TVP4020 Programmers Reference Manual 314 ...