R: Rejected

Custom constrain aspect ratios

It would be great to be able to constrain the aspect ratio to a custom ratio.

motion detection

this is the idea

"Development - motion detection / computer vision I have an idea (maybe wrong) that a static matrix like this could be used as the starting point for a motion detection / camera vision thing. Imagine if you processed the video (desaturate, detect outlines for example or use the “flood fill” that appeared on the quartzcomposer-dev list recently) and had something like a kernel that could sample each cell in the matrix and output a value or a boolean dependent on the white / black balance. I don’t think the core image kernel in quartz composer can output anything other than an image - but a kernel possibly can when used in core image in a cocoa application. Interesting."

that i have found in this site... www.daisyrust.com/2006/08/10/quartz-composer-video-matrix/

Clipping for Sprite and Billboard patches

When using Sprite and Billboard within a 3D Transformation patch, it isn't straightforward to determine if the Sprite/Billboard will be onscreen. Perhaps make a patch that, given the same positioning coordinates as a Sprite or Billboard, provides a boolean output indicating whether anything is onscreen? (i.e., you could then feed the output to an actual Sprite/Billboard's Enable input, to improve performances.)

See this thread for discussion: http://lists.apple.com/archives/quartzcomposer-dev/2007/Aug/msg00020.html

String With File: add range input

tobyspark said: "Would it be possible to develop it slightly to have a line number input, so QC would have the ability to read a single line from a longer text file?"

Audio data type / audio patch

Hi all, with all that goodness comin' (structure based buffer and such...), i was thinking that QC doesn't really have an equivalent for sound, and can't even play the sound of quicktime files.... Would you think it might be possible to imagine an audio data type for QC, and a sound renderer (there's already a plugin patch for this, but that doesn't allow external timebase, so you can't really synch' it with the video). Better, for a QC sound renderer: channel routing would be awesome. Then, eventually, a QC-Audio Unit patch.... I'm just curious, what do you guys use when you mix sound+visuals with QC ? I can think of a PDtoQC connectivity, through Midi, but this is kind of tedious because you spend more time linking the 2 in a descent manner than actually doing interesting things.... What's your opinion ?