alice-teacher Resizing reflects an object?

[Melanie Lam]

I am also able to reproduce this in Alice by placing any model and then in
the properties panel, changing the width or height of the model to '-1' -
it seems to happen about 90% of the time.

Thanks for reporting it, Carlos.

-Melanie



On Fri, Apr 22, 2022 at 8:27 AM Daniel Abeshouse <dabeshou at andrew.cmu.edu>
wrote:

> In the IDE, negative values for the resize* and setHeight|Width|Depth
> throw an exception that is logged and the operation is basically skipped,
> taking no animation time.
> On export to the player, we have different behavior. The set* methods and
> resize both accept negative values and produce the effect you are seeing,
> while the resizeHeight|Width|Depth log an error with each frame, and take
> up the animation time, unlike in the IDE.
>
> I have not done a full exploration of the effects of the various extra
> parameters.
>
> The difference in behavior after an error in the IDE and the Player is a
> known bug. The sizing behavior for negative numbers is a new one. I will
> add it to our list.
>
> Thanks for finding this.
>
> -Daniel Abeshouse
> On Apr 22, 2022, 8:28 AM -0400, Donald Slater via alice-teachers <
> alice-teachers at lists.andrew.cmu.edu>, wrote:
>
> I have not seen of there was a reply to the posting. If there were any, or
> you figured it out, I apologize.
>
> My first instinct was that it was the negative scale factor, as you
> suggest, but I have not been able to recreate it. The only way I got the
> reflection you are showing was to roll the ogre .5 rotations.
>
> When I try to resize an ogre by a negative value (fixed or random),
> nothing happens.
>
> Would you be willing to share your code. I may be missing something.
>
> Thank you,
> Don Slater
>
>
>
>
> On Apr 12, 2022, at 11:46 AM, Carlos Bovell via alice-teachers <
> alice-teachers at lists.andrew.cmu.edu> wrote:
>
> Hi,
>
> I have a random number generator resizing ogres for me and am getting
> reflections. What is causing that? A negative scale factor?
>
> <upsideDownOgre.JPG>
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