#PAR & S-VGA aspect ratio
11-Apr-95 10:37:12
Sb: #164057-#PAR & S-VGA aspect ratio
Fm: Angelo Guarino [DTI Inc] 70323,3375
To: T-Spect Le 74553,2760
T-Spect,
There are two points to clarify about aspect ratios, Vibrant drivers and 3DS
that might be of some help.
1st, the formula for pixel aspect ratio is
1
pixel aspect = ——————–
(width/height)*0.75
Therefore, for 640×480 its "1", 720×486 its "0.9" and 752×480 its "0.85".
2nd, the way the vibrant drivers work is that they will set the absolute max
image size if you have it set. Therefore, if you Vibnrant setting for your VGA
card is set to 640×480 and you have Vibrant set during the rendering, the image
will still only be 640×480 even through the selected resolution is
752x480x0.85. Therefore, you need to make sure you have the renderer set to
NULL
.. that'll do it.
Ang, President Dynamic Technologies, Inc. An Autodesk Systems Center for
Multimedia in MD