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Matrix representation?

Started by Seriema Feb 16, 2003 at 5:57 PM 6 replies 750+ views

Original Post

Feb 16, 2003 at 5:57 PM

Hi there!! In OGL it''s row mayor. right? How does that make the translation matrix look like? 1 0 0 x 0 1 0 y 0 0 1 z 0 0 0 1 or 1 0 0 0 x 1 0 0 y 0 1 0 z 0 0 1 ? "No lies of sugar can sweeten the sournes of reality" }+TITANIUM+{ A.K.A. DXnewbie[onMIRC]

Blivvy

Feb 16, 2003 at 6:19 PM

The first one.

Seriema

Author

Seriema

Feb 17, 2003 at 9:03 AM

OpenGL expects the matrix as a float*

so how does
1 0 0 x
0 1 0 y
0 0 1 z
0 0 0 1

look like in an 1D array?

1 0 0 0 0 1 0 0 0 0 1 0 x y z 1

or what?

(because I''m having problem with that)

"No lies of sugar can sweeten the sournes of reality"

}+TITANIUM+{ A.K.A. DXnewbie[onMIRC]

q2guy

Feb 17, 2003 at 9:51 AM

the opengl translation matrix is:

[ 1 0 0 Tx ] [ x ]
[ 0 1 0 Ty ] [ y ]
[ 0 0 1 Tz ] * [ z ] = (x+Tx, y+Ty, z+Tz, 1)
[ 0 0 0 1 ] [ 1 ]

q2guy

Feb 17, 2003 at 9:53 AM

uuu, bad ascii draw xD

Seriema

Author

Seriema

Feb 17, 2003 at 10:02 AM

eh... what?

how does it look in an array?

"No lies of sugar can sweeten the sournes of reality"

}+TITANIUM+{ A.K.A. DXnewbie[onMIRC]

Tybalt

Feb 17, 2003 at 10:05 AM

quote:
Original post by Seriema
OpenGL expects the matrix as a float*

so how does
1 0 0 x
0 1 0 y
0 0 1 z
0 0 0 1

look like in an 1D array?

1 0 0 0 0 1 0 0 0 0 1 0 x y z 1

or what?

that''s it.

Seriema

Author

Seriema

Feb 17, 2003 at 12:08 PM

thanx!!

"No lies of sugar can sweeten the sournes of reality"

}+TITANIUM+{ A.K.A. DXnewbie[onMIRC]

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