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Topic: smooth alpha? bug (Read 434 times) |
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Jerronimo
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smooth alpha? bug
« on: Nov 13th, 2003, 8:43pm » |
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don't know if this was found or not, but it's become a pain in the butt to me. 
if smooth() is enabled, ellipses with a strokeWeight of 1 will not be affected by any draw over them... they remain at the top of the screen. This is shown by the above code. I draw a rectangle over all of it with a low alpha value (fade out effect) and it doesn't seem to have any change over the circle drawn with a weight of 1, whereas the circle with a weight other than one is affected...
Code:
// setup - initialize stuff
void setup()
{
size( 300, 300 );
background( 0 );
noFill();
ellipseMode( CENTER_DIAMETER );
stroke( 255 );
smooth(); // comment this to hide the bug
}
void loop()
{
// fade out
fill( 0, 20 );
noStroke();
rect( 0, 0, width, height );
if( mousePressed )
{
fill( 255 );
rect( 20, 20, (width/2)-40, height-40 );
noFill();
stroke( 255 );
// this one will not fade
strokeWeight( 1 );
ellipse( width*3/4, height*3/4, 100, 100 );
// this one will
strokeWeight( 3 );
ellipse( width*3/4, height/4, 100, 100 );
}
}
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fry
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Re: smooth alpha? bug
« Reply #1 on: Nov 23rd, 2003, 11:50pm » |
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hm, that sounds fishy.. will look into it.
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