try tacking out the trackball and replacing with a transform, then connect a sprite instead of a cube. if you don't rotate the sprite will always face you, but then you won't really know its 3d so connect some lfo to the transform so it will rotate but not far enough to flip. look at the que image stack example it does something similar to this. pretty neat if you put a particle in a render in image feed that into the que, or run a bunch of mri pics through it. if you are wanting to still rotate the grid but have sprite face you and not follow the grid you are going to have to subtract and add the off set of how much you rotate. if you rotate 45˚ you need to add 45 or subtrack 45 depending on which way the grid is moving. you can do this with the math patch so you don't actually have to figure anything out. just add the rotate value to the value 1 of math subtract as operand and add the same value to the value 2 input. make another one for the add operand then make a conditional and a logic that detects if you need to subtr or add On Fri, Jan 23, 2009 at 2:22 PM, aienn <[email protected]> wrote:
> hey listers, > I'm trying to recreate a simple (yet nice) PC screensaver in QC > structurally it's very much like a bundled example > have a look: > /Developer/Examples/Quartz Composer/Compositions/Conceptual/Noise - 3D.qtz > > there are proper 3D cubes in that example grid > but I need to have 2D sprites in their place that always face the user > and I'm not exactly sure what sort of renderer patch of use in place of > those cubes > and how to position them so they'll always face the user > > any ideas? > > a. > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Quartzcomposer-dev mailing list ([email protected]) > Help/Unsubscribe/Update your Subscription: > > http://lists.apple.com/mailman/options/quartzcomposer-dev/dustin.oconnor%40gmail.com > > This email sent to [email protected] > -- Dustin O'Connor http://numedia-sci.info
_______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
