camera

Any way to have an input parameter to select the video input

mabeghin's picture

Hi there, I'm a bit new to QC but I already developped some apps & effects and really enjoy it. One problem I have: I did an application for light painting using video input (http://mattbeghin.net/?p=55). The problem I have is that it doesn't seem to be possible to select the video input without modifying the quartz composition, which is not a solution for me since I'm not on site each time it is used, and the camera is not always the same. Is there any Video Input patch that has an input parameter to change the device used ? Thanks ! Matt

Camera transform matrix

SteveElbows's picture

Im mucking around with Apple Motion 4. Motion is a 2.5D app. I notice that its API for writing plugins enables plugins to receive information about where the camera & object are in 3D space. I also notice that FxFactory Pro seems to have the ability to pass camera transform matrix and layer transform matrix to quartz compositions when fxfactory is used within motion.

Here is the fxfactory page that mentions this:

http://www.noiseindustries.com/downloads/misc/FxFactoryHelp/plugindevelo...

Unfortunately I know very little about matrix stuff and Im not quite sure how to handle it in Quartz Composer if I was trying to make a plugin for motion using quartz composer and have the view of a 3d object in the .qtz change as I move the camera or object within motions 3D space.

Any ideas where to start? Or if anybody knows of any existing quartz file or any of the fxfactory plugins that use this technique, because I dont even know how well motion handles this stuff.

Cheers