Gasp! ANIM speed
05-Jul-91 13:47:51
Sb: #9928-Gasp! ANIM speed
Fm: John Pendergrass 76246,676
To: Charles Blaquiere 76046,1756
Charles, Given the description of your anim, I sympathize with your
attempts to achieve reasonable frame rates. A recent anim I worked on
(Snoqualmie flyby) was similar in that *a lot* was changing each frame.
Taking it to HAM-E mode I couldn't get frame rates above 2-3/second. I
somewhat solved the problem by shrinking the anim to about 1/2 screen, and
putting it all inside a picture frame, thereby getting about 1/2 the screen
static the entire time. This pushed my frame rate up to about 10/second;
helped, but certainly not what I want to do each time.
HAM-E poses special animation problems (as does DCTV, etc), in that each
pixel we see is actually two pixels on the standard amiga screen. That
makes anim compression really suffer, since if *anything* changes from one
frame to the next you can get all sorts of changes occurring (particularly
with HAM-E HAME mode).
Your thought on getting an optimised palette is a good one. I'll have to
give it a try next time.
Last thought. If you do decide to re-render any of your anim, where the
background is a bit more stable; render the background *seperate* from the
action. Then render your foreground action (all the 'objects', so to
speak) against a black background. You can later composite them in
IP/ADPro. When rendering to HAM-E modes with a locked palette later, the
areas of the background will be the *same*, so will compress better.
Good luck. I don't want to go single frame either, but see the writing on
the wall. Hmmmm. Maybe that $15,000 WORM laser-disk player that Daniel
Wolf was talking about? 🙂 –jp–seattle–