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Index › Programming Questions & Help › Syntax Questions › making a background clear for projection

ilikebagels Junior Member Offline Posts: 56	making a background clear for projection May 18th, 2009, 6:49am   Hello, relativly simple question how would change the background so that when i project onto a space that the background is clear"no colour" and until i called something onto the screen. does that make sense?

blindfish God Member Offline Posts: 793	Re: making a background clear for projection Reply #1 - May 18th, 2009, 6:59am   Just set size() to match resolution, set background to black and use Present from the Sketch menu...
	Where is the what if the what is in why?

ilikebagels Junior Member Offline Posts: 56	Re: making a background clear for projection Reply #2 - May 19th, 2009, 5:30am   if i set the background to black doesnt that just project a black background then ? the images that i am showing are pretty much black outline vector files. Im using a dlp projector if thats any use ?

PhiLho  YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: making a background clear for projection Reply #3 - May 19th, 2009, 5:42am   How do you project "black" light? On a projector, or even a TV, black is the absence of light: pixels are not activated, light isn't projected. The deepness of the black then depend on ambient light, contrast ratio and such.