Jose Luis Santorcuato wrote:

Dear friends... i make a tracking controller for video, but in the Gem window always appear the red circle with the cross... i want view and control other videos with tracking... but always de red circle...depth???gemhead -1??? gemwin-1??? i can measure the movement. I use Mac Intel.

i am not sure what you are talking about.

it seems like you are seeing a red circle with a cross. this means that your patch is drawing a red circle with a cross. (ther eis no code in Gem itself that will magically (without a representation in your patch) draw things onto your screen). if you want to disable a certain part of your rendering patch you can:

• delete the objects that draw the unwanted thingies
• disable the unwanted thingies by either:
  • using [spigot] (or other ways of cuttin the connection ) somewhere

between [gemhead] and the object(s) that actually draw (e.g. [circle]

• sending [0( to the [gemhead] in question (which will turn the

gemhead of until you turn it on again)

the most likely pitfall is that all [gemhead]s within the current environment (that is: running instance of Pd) are taken into account for rendering; so if you are opening a help-patch for a certain object, this might well draw onto your carefully crafted Gem-scenery.

fgamsrd IOhannes