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Hi,
This one's hard for me to describe, so I hope the point get across.
I'd like to create an compound object that adds something to the scene, but
also removes something else from whatever it happens to intersect.
I guess I'll do it by example.
Say I make a golf course lawn. I want to add a bunch of holes with a golf
ball in each of them. I don't want have to use a difference object to create
the ground then specify the coordinates of each hole and then have to repeat
each coordinate to place the golf balls. I'd like to create a "golf ball in
a hole" object which when place in the ground would "drill a hole" in the
ground and then create a ball. If I decided to add some holes, I wouldn't
have to go back and modify two objects, the drilled ground and the group of
balls. If I decided to use this object inside the club house or on a golf
cart, it would drill the holes in those objects and add the balls.
Any ideas?
Thanks,
Bill
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On Fri, 3 Nov 2000 19:04:01 -0700, Bill Brehm wrote:
>Hi,
>
>This one's hard for me to describe, so I hope the point get across.
>
>I'd like to create an compound object that adds something to the scene, but
>also removes something else from whatever it happens to intersect.
>
>I guess I'll do it by example.
>
>Say I make a golf course lawn. I want to add a bunch of holes with a golf
>ball in each of them. I don't want have to use a difference object to create
>the ground then specify the coordinates of each hole and then have to repeat
>each coordinate to place the golf balls. I'd like to create a "golf ball in
>a hole" object which when place in the ground would "drill a hole" in the
>ground and then create a ball. If I decided to add some holes, I wouldn't
>have to go back and modify two objects, the drilled ground and the group of
>balls. If I decided to use this object inside the club house or on a golf
>cart, it would drill the holes in those objects and add the balls.
Nope. You'll have to do it the way you thought you were going to
have to do it, I don't think that there's any easier way.
--
Cheers
Steve email mailto:ste### [at] zeropps uklinuxnet
%HAV-A-NICEDAY Error not enough coffee 0 pps.
web http://www.zeropps.uklinux.net/
or http://start.at/zero-pps
3:41am up 24 days, 6:03, 3 users, load average: 1.02, 1.15, 1.16
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Bill Brehm wrote:
> I'd like to create an compound object that adds something to the scene, but
> also removes something else from whatever it happens to intersect.
Like Steve said, there's no direct way to do this. However, you can make it a
little simpler by using an array.
#declare n=20;
#declare Pos=array[n]
#declare Pos[0]=<10,0,10>;
#declare Pos[1]=<14,0,11>;
...
#declare GolfBall=sphere{0,1}
//Then run a loop to put the golf balls
#declare i=0;#while (i<n) object{GolfBall translate Pos[i]} #declare i=i+1; #end
//and then another loop to make the ground
difference{
plane{y,0}
#declare i=0;#while (i<n) object{GolfBall scale 1.1 translate Pos[i]}
#declare i=i+1; #end
}
G.
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"Bill Brehm" <bbr### [at] netzeronet> wrote in message
news:3a036e90@news.povray.org...
Probably a macro is the best way to do this. I don't think there is a single
object that can do this (feature request?).
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How does one go about making feature requests? I have a few others besides
this one.
Bill
"Tom Melly" <tom### [at] tomandlucouk> wrote in message
news:3a040bda@news.povray.org...
> "Bill Brehm" <bbr### [at] netzeronet> wrote in message
> news:3a036e90@news.povray.org...
>
> Probably a macro is the best way to do this. I don't think there is a
single
> object that can do this (feature request?).
>
>
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"Bill Brehm" <bbr### [at] netzeronet> wrote in message
news:3a041ad2@news.povray.org...
> How does one go about making feature requests? I have a few others besides
> this one.
general - but be prepared for a potentially rough ride if anyone thinks they
are ill-thought-out or already covered. ;)
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Tom Melly wrote:
>
> "Bill Brehm" <bbr### [at] netzeronet> wrote in message
> news:3a036e90@news.povray.org...
>
> Probably a macro is the best way to do this.
I don't think so. But two loops, one for the holes and the other for
the balls, will do the job.
> I don't think there is a single object that can do this (feature
> request?).
It will probably be shot down. The scene language is sufficiently
capable of the task.
Regards,
John
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