Not sure on policy for photo/raytrace composites, so I won't
post the actual image here. I'm quite pleased with it though:

http://billhails.net/Gallery/visitor.html

-- 
Bill Hails
http://billhails.net/

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I'm having trouble figuring out which bit *isn't* real... which is the 
idea, presumably. ;-)

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Orchid XP v2 wrote:

> I'm having trouble figuring out which bit *isn't* real... which is the
> idea, presumably. ;-)

Thanks! that's precisely the idea of course. I personally don't have
a problem with images of this type, though this one was really just
a proof of concept using an existing model from an earlier pic.

I really love the idea of making something that's obviously impossible
appear real, I guess lots of people into raytracing have the same
instinct.

-- 
Bill Hails
http://thyme.homelinux.net/

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Bill Hails wrote:
> Orchid XP v2 wrote:
> 
> 
>>I'm having trouble figuring out which bit *isn't* real... which is the
>>idea, presumably. ;-)
> 
> 
> Thanks! that's precisely the idea of course. I personally don't have
> a problem with images of this type, though this one was really just
> a proof of concept using an existing model from an earlier pic.
> 
> I really love the idea of making something that's obviously impossible
> appear real, I guess lots of people into raytracing have the same
> instinct.
> 
This was the earliest impetus for developing raytracing techniques I 
believe.  At any rate it is a lovely image.  I wonder if that lovelyness 
is part of what may seem not quite believeable bacause what we have is 
beautiful, delicate, diffuse, space-creating natural light, together 
with frozen motion.

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Jim Charter wrote:

> Bill Hails wrote:
>> Orchid XP v2 wrote:
>> 
>> 
>>>I'm having trouble figuring out which bit *isn't* real... which is the
>>>idea, presumably. ;-)
>> 
>> 
>> Thanks! that's precisely the idea of course. I personally don't have
>> a problem with images of this type, though this one was really just
>> a proof of concept using an existing model from an earlier pic.
>> 
>> I really love the idea of making something that's obviously impossible
>> appear real, I guess lots of people into raytracing have the same
>> instinct.
>> 
> This was the earliest impetus for developing raytracing techniques I
> believe.  At any rate it is a lovely image.  I wonder if that lovelyness
> is part of what may seem not quite believeable bacause what we have is
> beautiful, delicate, diffuse, space-creating natural light, together
> with frozen motion.

Thanks Jim, insightful as ever.

I think I figured out a few things that detract from a perfectly
natural image.

Firstly I didn't really pay any attention to the relative camera
perspectives of the photo and the render, they should coincide
for a believable image, I mean if the photo is with a 50mm lens,
then the render should try to emulate the same angle of view.

Secondly the light intensity isn't correlated, I should take into
account how much light the (real) mirrorball actually reflects,
probably no more than 70% or so.

Thirdly, I had to scale the render somewhat to fit the photo, better
to render at the correct size in the first place.

-- 
Bill Hails
http://billhails.net/

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> I really love the idea of making something that's obviously impossible
> appear real, I guess lots of people into raytracing have the same
> instinct.

This is the entire purpose of raytracing! :-D

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It doesn't seem to be casting much shadow on the room objects and lacking a
reflection in the window, but I'm just nitpicking :).

Otherwise, well done.

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"Mienai" <Mienai> wrote:

> It doesn't seem to be casting much shadow on the room objects and lacking
> a reflection in the window, but I'm just nitpicking :).
> 
> Otherwise, well done.

Yes, the interaction is all one way of course. The standard solution
I believe would be to start to model other parts of the scene to allow
the object to cast shadows and reflections, but that's starting to feel
like hard work for just a PoC.

Next I'm going to hover a 30 foot flying saucer over our back lawn :-)

-- 
Bill Hails
http://billhails.net/

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"Bill Hails" <me### [at] billhailsnet> schreef in bericht
news:44435f98@news.povray.org...
> Next I'm going to hover a 30 foot flying saucer over our back lawn :-)
>
Oh dear!!! I have always dreamed of doing that...really!!!!  :-)
Nice image, Bill!

Thomas

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"Bill Hails" <me### [at] billhailsnet> schreef in bericht
news:44435f98@news.povray.org...
> Next I'm going to hover a 30 foot flying saucer over our back lawn :-)
>
Looking out of my window, I just got one!!!

Thomas

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