I haven't used povray since 1998. Today, in 2020, I started again. 
Besides I never got a chance to use radiosity until now.

This rendering makes good use of three features: variable fresnel 
reflection, which provides the specular highlight without using the 
phong or specular keywords; multiple (8) area lights, which provide the 
soft shadows and just a little bit of noise; and the Radiosity_Final 
settings, which provide illumination of the indirectly lit areas.

Without these features the image would not have turned out the way I 
wanted it to. It also renders in 3 minutes, which is pretty fast.

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Preview of image 'minigolf-final.jpg'

Nice and neat.
Welcome back ! :-)


Anthony D'Agostino wrote:
> I haven't used povray since 1998. Today, in 2020, I started again.
> Besides I never got a chance to use radiosity until now.
>
> This rendering makes good use of three features: variable fresnel
> reflection, which provides the specular highlight without using the
> phong or specular keywords; multiple (8) area lights, which provide the
> soft shadows and just a little bit of noise; and the Radiosity_Final
> settings, which provide illumination of the indirectly lit areas.
>
> Without these features the image would not have turned out the way I
> wanted it to. It also renders in 3 minutes, which is pretty fast.

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Hi(gh)!

On 12.01.20 00:01, Anthony D'Agostino wrote:
> I haven't used povray since 1998. Today, in 2020, I started again. 
> Besides I never got a chance to use radiosity until now.

Hey, that's not before my time as a POVghan (started in 1995), but well 
before my first activities on povray.binaries.images (in autumn of 2000)!

> This rendering makes good use of three features: variable fresnel 
> reflection, which provides the specular highlight without using the 
> phong or specular keywords; multiple (8) area lights, which provide the 
> soft shadows and just a little bit of noise; and the Radiosity_Final 
> settings, which provide illumination of the indirectly lit areas.
> 
> Without these features the image would not have turned out the way I 
> wanted it to. It also renders in 3 minutes, which is pretty fast.

Absolutely lovely - and photo-realistic! What hardware did you use?

See you in Khyberspace!

Yadgar

Now playing: Firth of Fifth (Genesis)

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Now that's a nice image indeed! :)

Jörg "Yadgar" Bleimann <yaz### [at] gmxde> wrote:
> Hi(gh)!
>
> On 12.01.20 00:01, Anthony D'Agostino wrote:
> > I haven't used povray since 1998. Today, in 2020, I started again.
> > Besides I never got a chance to use radiosity until now.
>
> Hey, that's not before my time as a POVghan (started in 1995), but well
> before my first activities on povray.binaries.images (in autumn of 2000)!

Heh, I've been a POV user since 1993, but been posting here in the news groups
only since 2011 (although I've been reading these forums for a good 20 years or
so too). :D

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Thanks for the comments. My PC is not that great. It has an i7-860 CPU 
(from 2009) and 8GB of memory.

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Anthony D'Agostino wrote:
> Thanks for the comments. My PC is not that great. It has an i7-860 CPU
> (from 2009) and 8GB of memory.

I've only got a Dell Inspiron i5-2410 (from 2011), and used to use a tiny little
Acer.

I would try upgrading to POV-Ray version 3.8 to see if it works any better or
the output is different, as there have been many fixes and changes.

Beautiful scene - did you model the golf balls from scratch?

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"Bald Eagle" <cre### [at] netscapenet> wrote:
>....
>
> Beautiful scene - did you model the golf balls from scratch?

I once had a program to even spaces points, its was slow, not even compiled.
This image of course made me wonder how. Apparently there are 3 methods that can
be calc'd, not looped into place.

https://discourse.mcneel.com/t/golf-ball-evenly-spaced-points-on-a-sphere/86329/53

Icosahedral, Cubic, Tetrahedral

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then I saw this, yikes? now I gotta know ....

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Preview of image 'golfball.jpg'

Am 12.01.2020 um 00:01 schrieb Anthony D'Agostino:
> I haven't used povray since 1998. Today, in 2020, I started again.
> Besides I never got a chance to use radiosity until now.
> 
> This rendering ...

... is stunning!

Gregor

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Op 12/01/2020 om 18:19 schreef Pekka Aho:
> Now that's a nice image indeed! :)
> 
> Jörg "Yadgar" Bleimann <yaz### [at] gmxde> wrote:
>> Hi(gh)!
>>
>> On 12.01.20 00:01, Anthony D'Agostino wrote:
>>> I haven't used povray since 1998. Today, in 2020, I started again.
>>> Besides I never got a chance to use radiosity until now.
>>
>> Hey, that's not before my time as a POVghan (started in 1995), but well
>> before my first activities on povray.binaries.images (in autumn of 2000)!
> 
> Heh, I've been a POV user since 1993, but been posting here in the news groups
> only since 2011 (although I've been reading these forums for a good 20 years or
> so too). :D
> 

I started in 1997 iirc and did not post until 2000-2001. Still I 
remember seeing your name in the posts back then. Welcome back!

-- 
Thomas

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"Melody" <nomail@nomail> wrote:

> Icosahedral, Cubic, Tetrahedral

I also recall (not that long ago) coming across a graphic where someone used a
spiral arrangement.  I guess that would qualify as a loxodrome?

This was the closest I could find so far.
http://blog.marmakoide.org/?p=1

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Serendipity jumps in again with one dark dimple.
I can rotate it out of view but I'll still know it's there.
Place for the logo?

...... obviously possible with icosahedral method. According to these numbers,
there are certain Nsets, and they are

20 Faces
12 Points
30 Edges
164 Dimples
568 Dimples
1190 Dimples

If you need the norms, I got 3 sets.

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hm. if you didnt overlap the circles to adjacent triangle,
more Nsets ...??

place inside 28 * 20 + 12 = 572

what's up with 568? cant find any missing.

previous norms relied completely on one command:
/aline -n
doN't list if it's already there.
572 method, would not repeat any points while generating,

According to golf lore -- there are 336 Dimples to a golf ball.

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oh right, if they didnt all nestle in right 572, there'd be spaces.
I knew there was reason I didnt try to put them inside.

, just still stumped on the one dark Dimple.
nothing wrong with the norms.
aline -n doesnt fail.

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..254043
and
..254042
doh!

dark spot was a tip-off, now it's
162 Dimples
492 Dimples
1002 Dimples

these ought to be known numbers by now.
that was a lot of double points.

not sure if *that's even right, still checking the numbers.
only saw one dark spot out of 76 removed.

could be more

this is 492, I think, doh!

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I modeled the golfballs with negative blobs back then, but these are 
modeled with regular polygons. I used an icosahedron for the base and 
added 492 dimples, plus some smoothing here and there to make them more 
perfect.

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Anthony D'Agostino wrote:
> I modeled the golfballs with negative blobs back then, but these are
> modeled with regular polygons. I used an icosahedron for the base and
> added 492 dimples, plus some smoothing here and there to make them more
> perfect.

I almost want to do more configurations. So great that you posted such a
realistically lit scene. People learning, ought to be shown the best examples.
Then there was light ... in colors, o the colors.
Mine had to be nothing less than 9,9 adaptive 1 --per the instructions.
max_trace_level 10 assumed_gamma 1.6 radiosity brightness .8
Took around 30 minutes.
The shadows came out fine I thought. (thread Dimple Details)
Thank you, Anthony

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Anthony D'Agostino wrote:
> I haven't used povray since 1998. Today, in 2020, I started again.
> Besides I never got a chance to use radiosity until now.
...

A great image, having been away for so long you should also look at the HDR
feature which would add even more realism to this image.

Sean

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Thanks. You mean using an HDR as a light source? I've thought of it but 
never tried. I might use that feature for a future render, since this 
one was only a test.


On 2/23/20 5:19 AM, s.day wrote:
> Anthony D'Agostino wrote:
>> I haven't used povray since 1998. Today, in 2020, I started again.
>> Besides I never got a chance to use radiosity until now.
> ...
> 
> A great image, having been away for so long you should also look at the HDR
> feature which would add even more realism to this image.
> 
> Sean
>

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Hi Anthony,

not only that your scene rendered fast as you mentioned, but it also looks very
nice. When looking at it, the colors have different emotional responses.
Interesting. I really like your beautiful scene.

Can you do a large version of it? The only change I would want it to remove
these little star-cutouts, but that is just me. Others mighr like them a lot. I
want to use your scene on my 16:9 desktop as background.

I wonder of the scene would look if all these colored golf balls would be made
from glass and not opaque plastic, wood or ivory. Wanna give a try?

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Sven,

Thanks for the kind words.

Well, it doesn't render as fast when doing a larger version because all 
the radiosity artifacts appear. So I messed around with the settings for 
a while and got better results.

I tried different materials like glass and chrome but they just don't 
look good.

Here's a 1920x1080 version. I left the stars alone because that was part 
of the original design for the stands.

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