 | | | XSI to Flame via filmbox Again!! | XSI to Flame via filmbox Again!! 2004-03-25 - By Bob Cobb
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Thanks for all the help.
I got it to work. There is some floating due to the flame handling the fcurves
a bit differently causing some floating. I was able to get around this by
plotting and then setting all of these curves to linear. Also I was able to get
an expression from discreet to use in XSI so that you don't have to eyeball the
reallignment of the camera once you change it to Vertical. It works nicely so I
figured I would pass it along.
here is what they told me.
Before changing the camera to vertical
create a null and place the following expression on the ypos parameter.
2 * atan( tan( Camera.camera.fov / 2 ) / 1.33 )
The only variable is the last number where 1.33 is the aspect ratio of your
image format, if you are working at 1.85 or some other one
simply substitute it for 1.33.
Now plot that value. Then copy this animation curve.
Change the camera to vertical field of view
Now paste the animation curve from the plotted ypos null to the field of view
angle and it should put you back to the same camera framing that you had when
it was horizontal.
Hope this helps.
Bob
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<DIV><FONT face=Arial size=2>Thanks for all the help.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I got it to work. There is some floating due to
the
flame handling the fcurves a bit differently causing some floating. I was able
to get around this by plotting and then setting all of these curves to linear.
Also I was able to get an expression from discreet to use in XSI so that you
don't have to eyeball the reallignment of the camera once you change it to
Vertical. It works nicely so I figured I would pass it along.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>here is what they told me.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Before changing the camera to vertical</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>create a null and place the following expression
on
the ypos parameter.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>2 * atan( tan( Camera.camera.fov / 2 ) / 1.33
)<BR></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>The only variable is the last number where
1.33 is the aspect ratio of your image format, if you are working at 1.85
or some other one<BR>simply substitute it for 1.33.</FONT> </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Now plot that value. Then copy this animation
curve.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Change the camera to vertical field of
view</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Now paste the animation curve from the plotted
ypos
null to the field of view angle and it should put you back to the same camera
framing that you had when it was horizontal.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Hope this helps.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Bob</FONT></DIV>
<DIV><BR></DIV></BODY></HTML>
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