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I had some code where I meant to say 0.1*x+0.1*z but typed instead
0.1*z+0.1 . It took me the longest time to figure this out. I would
have hoped that povray would have given me an error message if I were to
mix variable types in an expression.
What say ye?
a) Should the following text output 0.20=x, 0.10=y, 0.10=z,
OR
b) Should it give an error: mixed variable types
?
I'd certainly prefer b)!
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By the following code I meant:
#declare aaa=0.1*x+0.1;
#debug str(aaa.x,3,2)
#debug " =x, "
#debug str(aaa.y,3,2)
#debug " =y, "
#debug str(aaa.z,3,2)
#debug " =z, "
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On Fri, 08 Dec 2000 09:59:44 -0500, Greg M. Johnson wrote:
>I had some code where I meant to say 0.1*x+0.1*z but typed instead
>0.1*z+0.1 . It took me the longest time to figure this out. I would
>have hoped that povray would have given me an error message if I were to
>mix variable types in an expression.
That would sorta defeat the whole purpose of promoting scalars to vectors.
--
Ron Parker http://www2.fwi.com/~parkerr/traces.html
My opinions. Mine. Not anyone else's.
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Ron Parker wrote:
> That would sorta defeat the whole purpose of promoting scalars to vectors.
A)
I like being able to say
camera { look_at 0
when I really mean:
camera { look_at <0,0,0>
B)
I don't like pov accepting in expressions
#declare a=0.1^0.5+0.1^x;
#declare b=0.1^0.5+0.1*x;
#declare c=0.1^0.5+x^<2,5,3>;
It's possible that this is impossible to "fix" B) without ruining A), or that
B). It's possible that B) is also "correct math." But it bugs me, I must
respectfully insist.
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On Fri, 08 Dec 2000 10:38:20 -0500, Greg M. Johnson wrote:
>B)
>I don't like pov accepting in expressions
> #declare a=0.1^0.5+0.1^x;
> #declare b=0.1^0.5+0.1*x;
> #declare c=0.1^0.5+x^<2,5,3>;
POV, of course, doesn't accept any of these. But I assume you're just
tweaking me now.
I'm not even sure what a or c should evaluate to, even in MegaPOV.
--
Ron Parker http://www2.fwi.com/~parkerr/traces.html
My opinions. Mine. Not anyone else's.
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Ron Parker wrote:
> POV, of course, doesn't accept any of these. But I assume you're just
> tweaking me now.
Yikes, sorry, once again assuming that mega 0.5 without any version
statements==3.1g, which I guess is not true.
3.1g DOES accept:
#declare aaa=0.1*0.1+<1,1,1>;
which is imho counterintuitive and I'd prefer here an error message, but
perhaps its standard math . . .
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