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Topic: z-depth alpha, how? (Read 2096 times) |
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Eilsoe
 
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z-depth alpha, how?
« on: Mar 9th, 2005, 9:40pm » |
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I have this:
www.avalon-rev.dk/p5/3D1/
how on earth do I make the particles change alpha when they move to the back?
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Kirupaforum moderator...
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bsr
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Re: z-depth alpha, how?
« Reply #1 on: Mar 9th, 2005, 11:11pm » |
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you should just be able to add a line before you draw your point here:
void draw(){
point(xpos, ypos, zpos);
}
to something like:
void draw(){
stroke(255,255,255,(zpos/10));
point(xpos, ypos, zpos);
}
or some such, can't remember if you have to do the division outside of stroke() and i've not got p5 installed on this here machine.
edit: sorry, looking again at your code that might not work.
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| « Last Edit: Mar 9th, 2005, 11:12pm by bsr » |
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http://hippocamp.net
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Eilsoe
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Re: z-depth alpha, how?
« Reply #2 on: Mar 9th, 2005, 11:26pm » |
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if it wasn't for my rickety way of rotating the field, it would work, but with my code, negative z-depth could also occur closest to the viewer 
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Kirupaforum moderator...
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