CompuServe Messages

#movie quality

    11-Feb-95 18:14:26
Sb: #4159-#movie quality
Fm: ASDG 76004,1765
To: WILLIAM S. YUNICK 73004,3527
Sam, Grainy output could be coming from several places. 1) the video compressor you're using is likely the largest culpret. Many of them compress video by discarding individual pixel's values to create blocks of the same color which compress better. The cinepak and indeo encoders (at their highest quality settings) are no where near as chunky as the microsoft compressors. 2) chunky results could occur if you render your output at a very small size and then display the resulting small images with a zoomed up display setting. The standard video player can be set to default to a zoom by 2, for example. 3) chunky movement (which might be described as chunky results) can occur when you disable the anti-aliasing routines from the Render Options dialog. Make sure all those check boxes in the lower left of the dialog are checked (on). 4) and the last source of grainy output which comes immediately to mind is, of course, grainy input. Something else to mention…if your A roll image is say 320 by 240, and your B roll image is smaller, like 120 by 80 or 160 by 120 then it will be scaled up to match the A roll. Like in case 2) above, when scaling up, it is possible for things to look more grainy. Jason Granularly yours