Spin - Reverse<> Normal?

Grazie wrote on 12/13/2004, 11:50 PM
Simple: Spin an event in anything - P/C, Track Motion . . or any flavour of the amazing 3-D . . what you get, once through 180º, is the "mirror" of the event . .this is good . . fine, I know this. BUT, supposing I want a client's Logo to spin AND keep its correct "look", once through 180º - ie NOT a mirror image? Is this a simple task?

Grazie

Comments

nickle wrote on 12/14/2004, 12:07 AM
180 degrees on the Z axis=upside down
180 degrees on the x axis=upside down
180 degrees on the y axis=backwards.

How about 360 degrees?
Grazie wrote on 12/14/2004, 12:15 AM
Sorry Nickle . .I don't follow you. Can you expand a bit on your "Series" ? Sounds good .. but pleasae put it another way.

TIA,

Grazie
nickle wrote on 12/14/2004, 12:18 AM
If you spin it in a complete circle it will face the same way as when you started.
Grazie wrote on 12/14/2004, 12:20 AM
Oh I see what you mean . and yes that is exactly the point I was making .. throught the 180 it is THEN in reverse. I want it to hit 180 and ALSO be in the correct orientation as 0 . .you got it?

TIA - G
nickle wrote on 12/14/2004, 12:31 AM
I got it but 360 degrees is a complete circle but 180 is half a circle so it would be backwards or mirror image. You have to spin it a full circle or 360 degrees.
Grazie wrote on 12/14/2004, 12:35 AM
Exactly! . . I think the only way is to Loop a 180 section THEN when you hit 181 then it would START again at 0 . . . yeah? I was just wondering if there was a "switch" that could be employed to "cease" the Mirror effect .. . If this was the case this type of "option" could be employed in something else too . .. !

Yeah .. looks like a Loop of the 180 . . and that would be that.. thanks for the feedback Nickle . ..

Grazie
FuTz wrote on 12/14/2004, 2:52 AM

*If* it's fast, wouldn't someone's eye be "mislead" by spinning 90 and quickly coming back ( -90) ?
Chienworks wrote on 12/14/2004, 3:45 AM
A common technique is to switch the image from 90° to -90° at the point where it is viewed edge on. If the image has zero thickness then this switch will be invisible. If the image has thickness then the only visible change will be the vertical edge which may be a very minimal change. In this case, a good way around it is to enclose the logo in a box or oval so that the opposing sides are identical.

Personally though, i find this very annoying. I know the image has only rotated 180° and i know i should now be seeing the back of it. I find it very disconcerting to still see the front at this point.
Grazie wrote on 12/14/2004, 4:38 AM
Great repliez .. Guyz!

. . .and yes, Kelly, I feel the same . .

Grazie
DGrob wrote on 12/14/2004, 6:27 AM
Hi Grazie, I just did exactly that with the famous "rotating boxes" veg file off the VASST site. I used the timeline timecode to determine the exact frame at which the the image was 90 degrees to front, i.e. edge-on. Then I used two copies of the media. First copy was straight on until the edge-on point, second image was flipped horizontally. Rendered to a new track and used that as my media for the rotation. Bingo, perfect.

Darryl
Grazie wrote on 12/14/2004, 6:44 AM
Yo Grobsie! . . Nioce one .. This is a lot of use for me ..

. .look uot for my Epson Scanner post . . AAarrgghhh .. ?!?"?£"?$£%$%

G :(