Light Exposure

Nicolas Lassabe <[email protected]> Wed, 17 Nov 2004 13:40:37 +0100

Newsgroups	gmane.comp.breve
Message-ID	<[email protected]>

I would like to use LightExposure function in my simulations. The 
function always returns 0. I use enable-light-exposure-detection 
<http://www.spiderland.org/breve/breve_docs/classes/Control.html#enable-light-exposure-detection> 
and get-light-exposure.  If an object is in the shadow of anothre one, 
the ligth exposure will be less ???


Thanks,

Nicolas*
*

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Exposure.tz (text/plain, 834 B)

@use Stationary.
@use PhysicalControl.
@use Mobile.

Controller Exposure.

PhysicalControl : Exposure {
	+ variables:
		floor (object).	
		floorShape (object).
    + to init:
  		self enable-shadow-volumes.

		self point-camera at (0, 0, 0) from (19, 30, 34).
		floorShape = (new Shape init-with-cube size (1000,1,1000) ).
		floor = new Stationary.
		floor register with-shape floorShape at-location (0, 0, 0).	
		#floor set-color to (1, 1, 1).		
		self enable-lighting.
		self enable-light-exposure-detection.
		self set-light-exposure-source to (0,50,0).
				
		self drop-cube.

	+ to drop-Cube:
		new Cube.
}

Mobile : Cube {
	+ to init:
		self set-shape to (new Cube init-with size (10,10,10)).	
		self set-color to (1, 0, 1).
		self move to (0,40,0).
		self enable-physics.
	+ to iterate:
		print (self get-light-exposure).
	

}