QTVR

echolab's picture

is there a way to navigate through Quicktime VR movies in quartz? any help would be appreciated.

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cwright's picture
no

no.

However, you can possibly extract the movie image somehow, and map it onto a sphere, like in this demo:

PreviewAttachmentSize
environment.qtz50.41 KB

gtoledo3's picture
Amazing!!!

cwright wrote:
no.

However, you can possibly extract the movie image somehow, and map it onto a sphere, like in this demo:

Chris YOU JUST BLEW MY MIND. Culling the front of a sphere! So simple and elegant. This is just disturbing!

But where is the clear? :o) It looks funny in Safari :oP

echolab's picture
works

didn't think of converting the movie. thanks!

toneburst's picture
Cool.

Amazing how well that actually works. Presumably the shader is slightly different from the Apple Envmap one, since that's based on a fish-eye/hemispherical environment map.

a|x

cwright's picture
same shader

I used the sample envmap shader (which is why the reflections aren't quite right, though close enough to be convincing at first glance)

I also made a modified one once that took a texture input instead of a solid color, and had some more parameters to control variable reflection (additive vs mixed, etc)... All in all, very fun. Didn't save it though :/ probably easy to whip up again.

gtoledo3's picture
I do note that you have to

I do note that you have to "flip" the picture on the sphere as well, to give make things "read" correctly.... noticed this when plugging in a city scene of NY.

It works best with things that don't have tremendous detail, or that are a lot of the same thing (ie., a forest, a mountain range, etc.) so that you don't pick up on the reflection aspect.

Really cool, and I actually think this is way better than the "mov." setup that Apple has been using for this, at least in my opinion.